title stringlengths 3 221 | text stringlengths 17 477k | parsed listlengths 0 3.17k |
|---|---|---|
Path toFile() method in Java with Examples | 18 Jul, 2019
The toFile() method of java.nio.file.Path interface used to return a java.io.File object representing this path object. if this Path is associated with the default provider, then this method returns a java.io.File object constructed with the String representation of this path. If this path was created by i... | [
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"text": "The toFile() method of java.nio.file.Path interface used to return a java.io.File object representing this path object. if this Path is associated with the default provider, t... |
Python – Length Conditional Concatenation | 17 Jun, 2022
Given a list of strings, perform concatenation of Strings whose length is greater than K.
Input : test_list = [“Gfg”, ‘is’, “Best”, ‘for’, ‘CS’, ‘Everything’], K = 3Output : BestEverything Explanation : All elements with Length > 3 are concatenated.
Input : test_list = [“Gfg”, ‘is’, “Best”, ‘for’, ‘CS’, ‘... | [
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"text": "\n17 Jun, 2022"
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"text": "Given a list of strings, perform concatenation of Strings whose length is greater than K."
},
{
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"s": 118,
"text": "Input : test_lis... |
Python | Extractive Text Summarization using Gensim | 26 Feb, 2021
Summarization is a useful tool for varied textual applications that aims to highlight important information within a large corpus. With the outburst of information on the web, Python provides some handy tools to help summarize a text. This article provides an overview of the two major categories of approac... | [
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"text": "\n26 Feb, 2021"
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"text": "Summarization is a useful tool for varied textual applications that aims to highlight important information within a large corpus. With the outburst of information on the web,... |
SQL | Conditional Expressions | 29 Apr, 2022
Following are Conditional Expressions in SQL
The CASE Expression: Let you use IF-THEN-ELSE statements without having to invoke procedures.In a simple CASE expression, the SQL searches for the first WHEN......THEN pair for which expr is equal to comparison_expr and returns return_expr. If above condition is... | [
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"text": "Following are Conditional Expressions in SQL"
},
{
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"s": 99,
"text": "The CASE Expression: Let you use IF-THEN-ELSE statements with... |
C++ Program to Check if a string can be obtained by rotating another string 2 places | 06 Jan, 2022
Given two strings, the task is to find if a string can be obtained by rotating another string two places.
Examples:
Input: string1 = “amazon”, string2 = “azonam” Output: Yes // rotated anti-clockwiseInput: string1 = “amazon”, string2 = “onamaz” Output: Yes // rotated clockwise
Asked in: Amazon Interview
... | [
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"text": "\n06 Jan, 2022"
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"text": "Given two strings, the task is to find if a string can be obtained by rotating another string two places. "
},
{
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"text": ... |
xdg-open command in Linux with Examples | 24 May, 2019
xdg-open command in the Linux system is used to open a file or URL in the user’s preferred application.The URL will be opened in the user’s preferred web browser if a URL is provided. The file will be opened in the preferred application for files of that type if a file is provided. xdg-open supports ftp, f... | [
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"text": "\n24 May, 2019"
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"text": "xdg-open command in the Linux system is used to open a file or URL in the user’s preferred application.The URL will be opened in the user’s preferred web browser if a URL is ... |
Find indices of elements equal to zero in a NumPy array | 05 Sep, 2020
Sometimes we need to find out the indices of all null elements in the array. Numpy provides many functions to compute indices of all null elements.
Method 1: Finding indices of null elements using numpy.where()
This function returns the indices of elements in an input array where the given condition is sa... | [
{
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{
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"text": "Sometimes we need to find out the indices of all null elements in the array. Numpy provides many functions to compute indices of all null elements. "
},
{
"code": null... |
Declare a const array in C# | In C#, use readonly to declare a const array.
public static readonly string[] a = { "Car", "Motorbike", "Cab" };
In readonly, you can set the value at runtime as well unlike const.
Another alternative of achieving what we saw above −
public ReadOnlyCollection<string> a { get { return new List<string> { "Car", "Motorbik... | [
{
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"text": "In C#, use readonly to declare a const array."
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"text": "public static readonly string[] a = { \"Car\", \"Motorbike\", \"Cab\" };"
},
{
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"... |
Automating, Orchestrating, and Scheduling tasks in Python data pipelines. | Towards Data Science | I was a big fan of Apache Airflow. Even today, I don’t have many complaints about it. But the new technology Prefect amazed me in many ways, and I can’t help but migrating everything to it.
Prefect (and Airflow) is a workflow automation tool. You can orchestrate individual tasks to do more complex work. You could manag... | [
{
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"e": 237,
"s": 47,
"text": "I was a big fan of Apache Airflow. Even today, I don’t have many complaints about it. But the new technology Prefect amazed me in many ways, and I can’t help but migrating everything to it."
},
{
"code": null,
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MySQL query to get all characters before a specific character hyphen | For this, you can use SUBSTRING_INDEX(). Let us first create a table −
mysql> create table DemoTable1857
(
Name varchar(20)
);
Query OK, 0 rows affected (0.00 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1857 values('John-Smith');
Query OK, 1 row affected (0.00... | [
{
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"text": "For this, you can use SUBSTRING_INDEX(). Let us first create a table −"
},
{
"code": null,
"e": 1241,
"s": 1133,
"text": "mysql> create table DemoTable1857\n (\n Name varchar(20)\n );\nQuery OK, 0 rows affected (0.00 sec)... |
Java | Collectors averagingDouble() with Examples - GeeksforGeeks | 06 Dec, 2018
Collectors averagingDouble(ToDoubleFunction<? super T> mapper) method is used to find the mean of the double values passed in the parameters. This method returns a Collector that produces the arithmetic mean of an double-valued function applied to the input elements. If no elements are passed as the input ... | [
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"text": "\n06 Dec, 2018"
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"code": null,
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"text": "Collectors averagingDouble(ToDoubleFunction<? super T> mapper) method is used to find the mean of the double values passed in the parameters. This method returns a... |
Find the Nth term of the series 1, 3, 7, 15, 31 . . . - GeeksforGeeks | 20 Jan, 2022
Given a positive integer N, the task is to find Nth term of the series:
1, 3, 7, 15, 31, .....
Examples:
Input: N = 5Output: 31
Input: N = 1Output: 1
Approach:
The sequence is formed by using the following pattern. For any value N-
TN = 2N – 1
Illustration:
Input: N = 5Output: 31Explanation:TN = 2N – 1 ... | [
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"text": "Given a positive integer N, the task is to find Nth term of the series:"
},
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"code": null,
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"text": "1, 3, 7, 15, 31, .... |
Clear TextField in Flutter - GeeksforGeeks | 23 Sep, 2020
TextField and TextFormField are the two most common widgets to get input from the user. They can be used in making forms, login pages, etc. In order to make their implementation effective and accurate, we need to add certain functionalities. In this article, we’ll learn how to clear TextField on certain ac... | [
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"text": "TextField and TextFormField are the two most common widgets to get input from the user. They can be used in making forms, login pages, etc. In order to make their ... |
Sweetviz: Automated EDA in Python | by Himanshu Sharma | Towards Data Science | Exploratory Data Analysis is a process where we tend to analyze the dataset and summarize the main characteristics of the dataset often using visual methods. EDA is really important because if you are not familiar with the dataset you are working on, then you won’t be able to infer something from that data. However, ED... | [
{
"code": null,
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"s": 171,
"text": "Exploratory Data Analysis is a process where we tend to analyze the dataset and summarize the main characteristics of the dataset often using visual methods. EDA is really important because if you are not familiar with the dataset you are working on, then... |
Unsupervised Learning: Dimensionality Reduction | by Victor Roman | Towards Data Science | As stated in previous articles, unsupervised learning refers to a kind of machine learning algorithms and techniques that are trained and fed with unlabeled data. In other words, we do not know the correct solutions or the values of the target variable beforehand.
The main goal of these types of algorithms is to study ... | [
{
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"text": "As stated in previous articles, unsupervised learning refers to a kind of machine learning algorithms and techniques that are trained and fed with unlabeled data. In other words, we do not know the correct solutions or the values of the target variable be... |
How to delete multiple rows of NumPy array ? - GeeksforGeeks | 21 Apr, 2021
NumPy is the Python library that is used for working with arrays. In Python there are lists which serve the purpose of arrays but they are slow. Therefore, NumPy is there to provide us with the array object that is much faster than the traditional Python lists. The reason for them being faster is that they... | [
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"text": "NumPy is the Python library that is used for working with arrays. In Python there are lists which serve the purpose of arrays but they are slow. Therefore, NumPy i... |
How to write a singleton class in C++? | Singleton design pattern is a software design principle that is used to restrict the instantiation of a class to one object. This is useful when exactly one object is needed to coordinate actions across the system. For example, if you are using a logger, that writes logs to a file, you can use a singleton class to crea... | [
{
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"text": "Singleton design pattern is a software design principle that is used to restrict the instantiation of a class to one object. This is useful when exactly one object is needed to coordinate actions across the system. For example, if you are using a logger... |
Period between() method in Java | The Period between two dates can be obtained using the between() method in the Period class in Java. This method requires two parameters i.e. the start date and the end date and it returns the Period between these two dates.
A program that demonstrates this is given as follows
Live Demo
import java.time.Period;
import... | [
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"text": "The Period between two dates can be obtained using the between() method in the Period class in Java. This method requires two parameters i.e. the start date and the end date and it returns the Period between these two dates."
},
{
"code": null,
... |
MySQL Tryit Editor v1.0 | SELECT SUM(Quantity) AS TotalItemsOrdered FROM OrderDetails;
Edit the SQL Statement, and click "Run SQL" to see the result.
This SQL-Statement is not supported in the WebSQL Database.
The example still works, because it uses a modified version of SQL.
Your browser does not support WebSQL.
Your are now using ... | [
{
"code": null,
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"text": "SELECT SUM(Quantity) AS TotalItemsOrdered FROM OrderDetails;"
},
{
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"text": ""
},
{
"code": null,
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"text": "Edit the SQL Statement, and click \"Run SQL\" to see the res... |
Apache POI Word - Paragraph | In this chapter you will learn how to create a Paragraph and how to add it to a document using Java. Paragraph is a part of a page in a Word file.
After completing this chapter, you will be able to create a Paragraph and perform read operations on it.
First of all, let us create a Paragraph using the referenced classes... | [
{
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"text": "In this chapter you will learn how to create a Paragraph and how to add it to a document using Java. Paragraph is a part of a page in a Word file."
},
{
"code": null,
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"text": "After completing this chapter, you ... |
Liar’s Dice by Self-Play. With Counterfactual Regret and Neural... | by Thomas Dybdahl Ahle | Towards Data Science | I’ve been meaning to learn about AIs for games like Poker or Liar’s Dice for a while. Recently while reading Deepmind’s article Player of Games, I thought I might be able to make something really simple that works well enough to be fun. “It shouldn’t take more than an afternoon,” I thought. Of course, I ended up spendi... | [
{
"code": null,
"e": 557,
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"text": "I’ve been meaning to learn about AIs for games like Poker or Liar’s Dice for a while. Recently while reading Deepmind’s article Player of Games, I thought I might be able to make something really simple that works well enough to be fun. “It shouldn’t take... |
How to pass data from one activity to another in Android using shared preferences? | This example demonstrate about How to pass data from one activity to another in Android using shared preferences
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version... | [
{
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"text": "This example demonstrate about How to pass data from one activity to another in Android using shared preferences"
},
{
"code": null,
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"text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Pro... |
Write a SQL query to count the number of duplicate TRANSACTION_ID in an ORDERS DB2 table | We can find the duplicate TRANSACTION_ID in the ORDERS DB2 table using the below query:
SELECT TRANSACTION_ID, COUNT(*) AS TRANSACTION_COUNT FROM ORDER
GROUP BY TRANSACTION_ID
HAVING COUNT(*) > 1
The purpose of COUNT(*) is to count the number of rows. We will group the result based on the TRANSACTION_ID using GROUP BY ... | [
{
"code": null,
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"text": "We can find the duplicate TRANSACTION_ID in the ORDERS DB2 table using the below query:"
},
{
"code": null,
"e": 1258,
"s": 1150,
"text": "SELECT TRANSACTION_ID, COUNT(*) AS TRANSACTION_COUNT FROM ORDER\nGROUP BY TRANSACTION_ID\nHAVI... |
How to Run a Python Script - GeeksforGeeks | 27 Dec, 2019
Python is a well known high-level programming language. The Python script is basically a file containing code written in Python. The file containing python script has the extension ‘.py’ or can also have the extension ‘.pyw’ if it is being run on a windows machine. To run a python script, we need a python ... | [
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"code": null,
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"text": "Python is a well known high-level programming language. The Python script is basically a file containing code written in Python. The file containing python script ... |
How to use $regex in MongoDB? | Following is the syntax to use $regex in MongoDB −
db.yourCollectionName.find({yourFieldName: { $regex: yourValue}});
Let us first create a collection with documents −
> db.regularExpressionDemo.insertOne({"UserName":"John"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5cdffc25bf3115999ed51210")
}
> db.reg... | [
{
"code": null,
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"text": "Following is the syntax to use $regex in MongoDB −"
},
{
"code": null,
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"text": "db.yourCollectionName.find({yourFieldName: { $regex: yourValue}});"
},
{
"code": null,
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"s": 1180,
"t... |
How to run a node.js app as a background service ? - GeeksforGeeks | 19 Feb, 2021
Node. js is a platform built on Chrome’s JavaScript v8 engine, which is used for easily building fast and scalable network applications, javascript uses an event-driven, non-blocking I/O model that makes it lightweight and efficient which is perfect for data-intensive real-time applications that run across... | [
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"code": null,
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"text": "Node. js is a platform built on Chrome’s JavaScript v8 engine, which is used for easily building fast and scalable network applications, javascript uses an event-d... |
Design Patterns - Prototype Pattern | Prototype pattern refers to creating duplicate object while keeping performance in mind. This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object.
This pattern involves implementing a prototype interface which tells to create a clone of the current obj... | [
{
"code": null,
"e": 2966,
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"text": "Prototype pattern refers to creating duplicate object while keeping performance in mind. This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object."
},
{
"code": null,
"e": 3... |
Python - Get Nth column elements in Tuple Strings - GeeksforGeeks | 29 Dec, 2019
Yet another peculiar problem which might not be common, but can occur in python programming while playing with tuples. Since tuples are immutable, they are difficult to manipulate and hence knowledge of possible variation solutions always helps. This articles solves problem of extracting only the Nth index... | [
{
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"text": "\n29 Dec, 2019"
},
{
"code": null,
"e": 24617,
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"text": "Yet another peculiar problem which might not be common, but can occur in python programming while playing with tuples. Since tuples are immutable, they are difficu... |
Building an Image Captioning Model with Keras | by Eunjoo Byeon | Towards Data Science | I have been working on an exploratory project to build a conceptual description model that generates interpretation for artworks. To begin, I started using a CNN-LSTM architecture that can work as a simple caption generator. In this post, I will describe how to build a basic CNN-LSTM architecture to create a model that... | [
{
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"text": "I have been working on an exploratory project to build a conceptual description model that generates interpretation for artworks. To begin, I started using a CNN-LSTM architecture that can work as a simple caption generator. In this post, I will describe ... |
K-Means++ Implementation in Python and Spark | by Syed Sadat Nazrul | Towards Data Science | For this tutorial, we will be using PySpark, the Python wrapper for Apache Spark. While PySpark has a nice K-Means++ implementation, we will write our own one from scratch.
If you do not have PySpark on Jupyter Notebook, I found this tutorial useful:
blog.sicara.com
Before starting, ensure you have access to the weathe... | [
{
"code": null,
"e": 344,
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"text": "For this tutorial, we will be using PySpark, the Python wrapper for Apache Spark. While PySpark has a nice K-Means++ implementation, we will write our own one from scratch."
},
{
"code": null,
"e": 422,
"s": 344,
"text": "If you do not... |
jMeter - JMS Test Plan | In this chapter, we will learn how to write a simple test plan to test Java Messaging Service (JMS). JMS supports two types of messaging −
Point-to-Point messaging − Queue messaging is generally used for transactions where the sender expects a response. Messaging systems are quite different from normal HTTP requests. I... | [
{
"code": null,
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"text": "In this chapter, we will learn how to write a simple test plan to test Java Messaging Service (JMS). JMS supports two types of messaging −"
},
{
"code": null,
"e": 2284,
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"text": "Point-to-Point messaging − Queue messaging ... |
Realtime prediction using Spark Structured Streaming, XGBoost and Scala | by Bogdan Cojocar | Towards Data Science | In this article we will discuss about building a complete machine learning pipeline. The first part will be focused on training a binary classifier in a standard batch mode and in the second part we will do some realtime prediction.
We will use data from the Titanic: Machine learning from disaster one of the many Kaggl... | [
{
"code": null,
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"text": "In this article we will discuss about building a complete machine learning pipeline. The first part will be focused on training a binary classifier in a standard batch mode and in the second part we will do some realtime prediction."
},
{
"code": ... |
Particular field as result in MongoDB? | To get particular field as a result in MongoDB, you can use findOne(). Following is the syntax −
db.yourCollectionName.findOne({"yourFieldName1":yourValue},{yourFieldName2:1});
Let us first create a collection with documents −
> db.particularFieldDemo.insertOne({"EmployeeName":"John Smith","EmployeeAge":26,"EmployeeTec... | [
{
"code": null,
"e": 1159,
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"text": "To get particular field as a result in MongoDB, you can use findOne(). Following is the syntax −"
},
{
"code": null,
"e": 1239,
"s": 1159,
"text": "db.yourCollectionName.findOne({\"yourFieldName1\":yourValue},{yourFieldName2:1});"
... |
How to properly enable ffmpeg for matplotlib.animation? | To enable ffmpeg for matplotlib.animation, we can take the following steps −
Set the figure size and adjust the padding between and around the subplots.
Set the figure size and adjust the padding between and around the subplots.
Set the ffmpeg directory.
Set the ffmpeg directory.
Create a new figure or activate an exis... | [
{
"code": null,
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"text": "To enable ffmpeg for matplotlib.animation, we can take the following steps −"
},
{
"code": null,
"e": 1215,
"s": 1139,
"text": "Set the figure size and adjust the padding between and around the subplots."
},
{
"code": null,
... |
UInt32 Struct in C# | The UInt32 struct represents a 32-bit unsigned integer. The UInt32 value type represents unsigned integers with values ranging from 0 to 4,294,967,295.
Let us now see some examples of UInt32 Struct methods −
The UInt32.CompareTo() method in C# is used to compare the current instance to a specified object or UInt32 and ... | [
{
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"text": "The UInt32 struct represents a 32-bit unsigned integer. The UInt32 value type represents unsigned integers with values ranging from 0 to 4,294,967,295."
},
{
"code": null,
"e": 1270,
"s": 1214,
"text": "Let us now see some examples o... |
Node.js fs.realpathSync() Method - GeeksforGeeks | 11 Oct, 2021
The fs.realpathSync() method is used to synchronously compute the canonical pathname of a given path. It does so by resolving the ., .. and the symbolic links in the path and returning the resolved path.Syntax:
fs.realpathSync( path, options )
Parameters: This method accept two parameters as mentioned abo... | [
{
"code": null,
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"text": "\n11 Oct, 2021"
},
{
"code": null,
"e": 25214,
"s": 25002,
"text": "The fs.realpathSync() method is used to synchronously compute the canonical pathname of a given path. It does so by resolving the ., .. and the symbolic links in t... |
How to get the differences between two dates in iOS? | Getting difference between two dates is easy. You should know how to play between the dates.
We will be using DateFormatter class for formatting the dates.
Instances of DateFormatter create string representations of NSDate objects, and convert textual representations of dates and times into NSDate objects.
You can re... | [
{
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"text": "Getting difference between two dates is easy. You should know how to play between the dates."
},
{
"code": null,
"e": 1218,
"s": 1155,
"text": "We will be using DateFormatter class for formatting the dates."
},
{
"code": null... |
Introduction of K-Map (Karnaugh Map) - GeeksforGeeks | 22 Nov, 2021
In many digital circuits and practical problems we need to find expression with minimum variables. We can minimize Boolean expressions of 3, 4 variables very easily using K-map without using any Boolean algebra theorems. K-map can take two forms Sum of Product (SOP) and Product of Sum (POS) according to th... | [
{
"code": null,
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"text": "\n22 Nov, 2021"
},
{
"code": null,
"e": 27314,
"s": 26834,
"text": "In many digital circuits and practical problems we need to find expression with minimum variables. We can minimize Boolean expressions of 3, 4 variables very easil... |
How to design a custom alert box using JavaScript? | To design a custom alert box, try to run the following code. The code uses a JavaScript library jQuery and CSS to create an alert box different from the standard alert box −
Live Demo
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<s... | [
{
"code": null,
"e": 1236,
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"text": "To design a custom alert box, try to run the following code. The code uses a JavaScript library jQuery and CSS to create an alert box different from the standard alert box −"
},
{
"code": null,
"e": 1246,
"s": 1236,
"text": "Live Dem... |
OpenNLP - Quick Guide | NLP is a set of tools used to derive meaningful and useful information from natural language sources such as web pages and text documents.
Apache OpenNLP is an open-source Java library which is used to process natural language text. You can build an efficient text processing service using this library.
OpenNLP provides... | [
{
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"text": "NLP is a set of tools used to derive meaningful and useful information from natural language sources such as web pages and text documents."
},
{
"code": null,
"e": 2156,
"s": 1991,
"text": "Apache OpenNLP is an open-source Java libra... |
PowerShell: Wait for the First command to finish | We know that PowerShell executes commands sequentially until we specify some parallel Jobs but sometimes the next command executes before the First command because the first command might be taking a long time to retrieve the data. In that case, if you want the previous command to finish first and then the next command... | [
{
"code": null,
"e": 1442,
"s": 1062,
"text": "We know that PowerShell executes commands sequentially until we specify some parallel Jobs but sometimes the next command executes before the First command because the first command might be taking a long time to retrieve the data. In that case, if you ... |
JavaMail API - Sending Email With Inline Imagess | Here is an example to send an HTML email from your machine with inline image. Here we have used JangoSMPT server via which emails are sent to our destination email address. The setup is explained in the Environment Setup chapter.
To send a email with an inline image, the steps followed are:
Get a Session
Get a Session... | [
{
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"text": "Here is an example to send an HTML email from your machine with inline image. Here we have used JangoSMPT server via which emails are sent to our destination email address. The setup is explained in the Environment Setup chapter."
},
{
"code": ... |
Machine Learning for Building Recommender System in Python | by Yuefeng Zhang, PhD | Towards Data Science | Recommender systems are widely used in product recommendations such as recommendations of music, movies, books, news, research articles, restaurants, etc. [1][5][9][10].
There are two popular methods for building recommender systems:
collaborative filtering [3][4][5][10]
Content-based filtering [6][9]
The collaborative... | [
{
"code": null,
"e": 341,
"s": 171,
"text": "Recommender systems are widely used in product recommendations such as recommendations of music, movies, books, news, research articles, restaurants, etc. [1][5][9][10]."
},
{
"code": null,
"e": 405,
"s": 341,
"text": "There are two po... |
K-Means Clustering for Beginners. An in-depth explanation and... | by Aden Haussmann | Towards Data Science | K-Means clustering was one of the first algorithms I learned when I was getting into Machine Learning, right after Linear and Polynomial Regression.
But K-Means diverges fundamentally from the the latter two. Regression analysis is a supervised ML algorithm, whereas K-Means is unsupervised.
What does this mean?
Supervi... | [
{
"code": null,
"e": 321,
"s": 172,
"text": "K-Means clustering was one of the first algorithms I learned when I was getting into Machine Learning, right after Linear and Polynomial Regression."
},
{
"code": null,
"e": 464,
"s": 321,
"text": "But K-Means diverges fundamentally fr... |
SQLite - TRUNCATE TABLE Command | Unfortunately, we do not have TRUNCATE TABLE command in SQLite but you can use SQLite DELETE command to delete complete data from an existing table, though it is recommended to use DROP TABLE command to drop the complete table and re-create it once again.
Following is the basic syntax of DELETE command.
sqlite> DELETE... | [
{
"code": null,
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"text": "Unfortunately, we do not have TRUNCATE TABLE command in SQLite but you can use SQLite DELETE command to delete complete data from an existing table, though it is recommended to use DROP TABLE command to drop the complete table and re-create it once aga... |
Creating a tree with Left-Child Right-Sibling Representation - GeeksforGeeks | 23 Feb, 2022
Left-Child Right-Sibling Representation is a different representation of an n-ary tree where instead of holding a reference to each and every child node, a node holds just two references, first a reference to its first child, and the other to its immediate next sibling. This new transformation not only rem... | [
{
"code": null,
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"text": "\n23 Feb, 2022"
},
{
"code": null,
"e": 25151,
"s": 24665,
"text": "Left-Child Right-Sibling Representation is a different representation of an n-ary tree where instead of holding a reference to each and every child node, a node ho... |
Understanding and using Python classes | by Valentina Alto | Towards Data Science | Python is an interpreted, object-oriented, high-level programming language with dynamic semantics. The latter is the formal definition given by the official website python.org. Let’s break it and try to understand it:
interpreted: differently from compiled programming languages (where the source code has to be converte... | [
{
"code": null,
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"text": "Python is an interpreted, object-oriented, high-level programming language with dynamic semantics. The latter is the formal definition given by the official website python.org. Let’s break it and try to understand it:"
},
{
"code": null,
"e": ... |
Winning the Kaggle Google Brain — Ventilator Pressure Prediction | by Gilles Vandewiele | Towards Data Science | On the 4th of November, we managed to came out on top out of 2650 teams in the Google Brain — Ventilator Pressure Prediction, organized on Kaggle. In this blog post I would like to take you through the journey that bagged us the victory. A more summarized version of this write-up can be found on the Kaggle forum and we... | [
{
"code": null,
"e": 568,
"s": 172,
"text": "On the 4th of November, we managed to came out on top out of 2650 teams in the Google Brain — Ventilator Pressure Prediction, organized on Kaggle. In this blog post I would like to take you through the journey that bagged us the victory. A more summarized... |
How to generate non-repeating random numbers in Python? | Following program generates 10 random, non-repetitive integers between 1 to 100. It generates a random integer in the given interval and adds it in a list if it is not previously added.
>>> import random
>>> list=[]
>>> for i in range(10):
r=random.randint(1,100)
if r not in list: list.append(r)
>>... | [
{
"code": null,
"e": 1248,
"s": 1062,
"text": "Following program generates 10 random, non-repetitive integers between 1 to 100. It generates a random integer in the given interval and adds it in a list if it is not previously added."
},
{
"code": null,
"e": 1430,
"s": 1248,
"text... |
How to retrieve multiple ResultSets from a stored procedure using a JDBC program? | Stored procedures are sub routines, segment of SQL statements which are stored in SQL catalog. All the applications that can access Relational databases (Java, Python, PHP etc.), can access stored procedures.
Stored procedures contain IN and OUT parameters or both. They may return result sets in case you use SELECT sta... | [
{
"code": null,
"e": 1271,
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"text": "Stored procedures are sub routines, segment of SQL statements which are stored in SQL catalog. All the applications that can access Relational databases (Java, Python, PHP etc.), can access stored procedures."
},
{
"code": null,
"e": 1442,
... |
How to Create a Unlock Slide-Bar in Android? - GeeksforGeeks | 23 Feb, 2021
A SeekBar is an extension of ProgressBar that adds a draggable thumb. The user can touch the thumb and drag left or right to set the current progress level or use the arrow keys. SeekBar is a useful user interface element in Android that allows the selection of integer values using a natural user interface... | [
{
"code": null,
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"text": "\n23 Feb, 2021"
},
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"code": null,
"e": 27297,
"s": 26731,
"text": "A SeekBar is an extension of ProgressBar that adds a draggable thumb. The user can touch the thumb and drag left or right to set the current progress level or use ... |
Scala List exists() method with example - GeeksforGeeks | 29 Jul, 2019
The exists() method is utilized to check if the given predicate satisfy the elements of the list or not.
Method Definition: def exists(p: (A) => Boolean): Boolean
Return Type: It returns true if the stated predicate holds true for some elements of the list else it returns false.
Example #1:
// Scala progra... | [
{
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},
{
"code": null,
"e": 24085,
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"text": "The exists() method is utilized to check if the given predicate satisfy the elements of the list or not."
},
{
"code": null,
"e": 24143,
"s": 24085... |
An Utterly Simple Guide on Installing Tensorflow-GPU 2.0 on Windows 10 | by Dario Radečić | Towards Data Science | TensorFlow is Google’s open-source library which enables you to develop and train deep learning models. Whilst most of the install guides focus on installing the CPU version, which is your regular pip install, today I want to focus on installing it’s bigger, much more powerful brother — the GPU version.
The main reason... | [
{
"code": null,
"e": 477,
"s": 172,
"text": "TensorFlow is Google’s open-source library which enables you to develop and train deep learning models. Whilst most of the install guides focus on installing the CPU version, which is your regular pip install, today I want to focus on installing it’s bigg... |
Batch Script - Devices | Windows now has an improved library which can be used in Batch Script for working with devices attached to the system. This is known as the device console – DevCon.exe.
Windows driver developers and testers can use DevCon to verify that a driver is installed and configured correctly, including the proper INF files, dri... | [
{
"code": null,
"e": 2338,
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"text": "Windows now has an improved library which can be used in Batch Script for working with devices attached to the system. This is known as the device console – DevCon.exe."
},
{
"code": null,
"e": 2769,
"s": 2338,
"text": "Windows drive... |
How to switch back from a frame to default in Selenium Webdriver? | We can switch back from a frame to default in Selenium webdriver using the switchTo().defaultContent() method. Initially, the webdriver control remains on the main web page.
In order to access elements within the frame, we have to shift the control from the main page to the frame with the help of the switchTo().frame a... | [
{
"code": null,
"e": 1236,
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"text": "We can switch back from a frame to default in Selenium webdriver using the switchTo().defaultContent() method. Initially, the webdriver control remains on the main web page."
},
{
"code": null,
"e": 1466,
"s": 1236,
"text": "In order... |
scipy stats.skew() | Python - GeeksforGeeks | 11 Feb, 2019
scipy.stats.skew(array, axis=0, bias=True) function calculates the skewness of the data set.
skewness = 0 : normally distributed.
skewness > 0 : more weight in the left tail of the distribution.
skewness < 0 : more weight in the right tail of the distribution.
Its formula –
Parameters :array : Input arra... | [
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},
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"code": null,
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"text": "scipy.stats.skew(array, axis=0, bias=True) function calculates the skewness of the data set."
},
{
"code": null,
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"text"... |
R Shiny authentication (incl. demo app) | by Thomas Filaire | Towards Data Science | Shiny is extremely powerful to quickly build interactive web applications. It’s also the preferred technological solution for many data scientists, because it’s R-native.
As not all web applications are meant to be public, the ability to control access should be part of the know-how of any aspiring data scientist.
This... | [
{
"code": null,
"e": 342,
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"text": "Shiny is extremely powerful to quickly build interactive web applications. It’s also the preferred technological solution for many data scientists, because it’s R-native."
},
{
"code": null,
"e": 487,
"s": 342,
"text": "As not all web ... |
Java Regex Example - Character \t Match | The character \t matches the tab character.
The following example shows the usage of character matching.
package com.tutorialspoint;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class CharactersDemo {
private static final String REGEX = "\t";
private static final String INPUT = "abc\ta... | [
{
"code": null,
"e": 2168,
"s": 2124,
"text": "The character \\t matches the tab character."
},
{
"code": null,
"e": 2229,
"s": 2168,
"text": "The following example shows the usage of character matching."
},
{
"code": null,
"e": 2816,
"s": 2229,
"text": "packa... |
Lodash _.camelCase() Method - GeeksforGeeks | 09 Sep, 2020
The _.camelCase() method is used to convert a string into a camel case string. The string can be space-separated, dash-separated, or can be separated by underscores.
Syntax:
_.camelCase(string)
Parameters: This method accepts a single parameter as mentioned above and described below:
string: This paramete... | [
{
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"text": "\n09 Sep, 2020"
},
{
"code": null,
"e": 37522,
"s": 37356,
"text": "The _.camelCase() method is used to convert a string into a camel case string. The string can be space-separated, dash-separated, or can be separated by underscore... |
XAML - CheckBox | A CheckBox is a control that a user can select (check) or clear (uncheck). It provides a list of options that a user can select, such as a list of settings to apply to an application. The hierarchical inheritance of Checkbox class is as follows −
Background
Gets or sets a brush that provides the background of the contr... | [
{
"code": null,
"e": 2170,
"s": 1923,
"text": "A CheckBox is a control that a user can select (check) or clear (uncheck). It provides a list of options that a user can select, such as a list of settings to apply to an application. The hierarchical inheritance of Checkbox class is as follows −"
},
... |
How to be Pythonic and why you should care | by Robert Clark | Towards Data Science | I’ve officially been writing code for over a dozen years now with the last 5 as a full-time software engineer, and while I still have MUCH to learn (a lifetime of learning to be exact!), I have seen my fair share of software and have (dare I say) developed my skills immensely in the field during that time. I still reme... | [
{
"code": null,
"e": 929,
"s": 172,
"text": "I’ve officially been writing code for over a dozen years now with the last 5 as a full-time software engineer, and while I still have MUCH to learn (a lifetime of learning to be exact!), I have seen my fair share of software and have (dare I say) develope... |
What are single row and multiple row subqueries? | A single-row subquery is used when the outer query's results are based on a single, unknown value. Although this query type is formally called "single-row," the name implies that the query returns multiple columns-but only one row of results. However, a single-row subquery can return only one row of results consisting ... | [
{
"code": null,
"e": 1421,
"s": 1062,
"text": "A single-row subquery is used when the outer query's results are based on a single, unknown value. Although this query type is formally called \"single-row,\" the name implies that the query returns multiple columns-but only one row of results. However,... |
jQuery - removeClass( class ) Method | The removeClass( class ) method removes all or the specified class(es) from the set of matched elements.
Here is the simple syntax to use this method −
selector.removeClass( class )
Here is the description of all the parameters used by this method −
class − The name of CSS class.
class − The name of CSS class.
Followi... | [
{
"code": null,
"e": 2427,
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"text": "The removeClass( class ) method removes all or the specified class(es) from the set of matched elements."
},
{
"code": null,
"e": 2474,
"s": 2427,
"text": "Here is the simple syntax to use this method −"
},
{
"code": null,
... |
How to open MySQL command line on Windows10? | To open the MySQL command line from cmd, you need to use username root with your password.
Follow the below given steps. The syntax is as follows −
cd \> press enter key
cd Program Files\MySQL\MySQL Server 8.0\bin> press enter key
C:\Program Files\MySQL\MySQL Server 8.0\bin>mysql -uroot -p press enter key
Enter passwor... | [
{
"code": null,
"e": 1153,
"s": 1062,
"text": "To open the MySQL command line from cmd, you need to use username root with your password."
},
{
"code": null,
"e": 1210,
"s": 1153,
"text": "Follow the below given steps. The syntax is as follows −"
},
{
"code": null,
"e... |
Explain widening with objects in Java. | Java provides various datatypes to store various data values. It provides 7 primitive datatypes (stores single values) namely, boolean, byte, char, short, int, long, float, double and, reference datatypes (arrays and objects).
Type Casting/type conversion − Converting one primitive datatype into another is known as typ... | [
{
"code": null,
"e": 1289,
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"text": "Java provides various datatypes to store various data values. It provides 7 primitive datatypes (stores single values) namely, boolean, byte, char, short, int, long, float, double and, reference datatypes (arrays and objects)."
},
{
"code": null... |
Access Data from Twitter API using R and Python | by Michael Galarnyk | Towards Data Science | NOTE: There is an updated version of this tutorial that goes over setting up the Twitter Developer Account and the tweepy library (Python) here.
Using the Twitter API should be an easy thing, but sometimes pictures and simple code can save you that extra 5 minutes. I previously covered how to Access Data from Twitter A... | [
{
"code": null,
"e": 317,
"s": 172,
"text": "NOTE: There is an updated version of this tutorial that goes over setting up the Twitter Developer Account and the tweepy library (Python) here."
},
{
"code": null,
"e": 549,
"s": 317,
"text": "Using the Twitter API should be an easy t... |
forward_list::begin() and forward_list::end() in C++ STL | In this article we will be discussing the working, syntax and examples of forward_list::begin() and forward_list::end() functions in C++.
Forward list are sequence containers that allow constant time insert and erase operations anywhere within the sequence. Forward list are implement as a singly-linked lists. The order... | [
{
"code": null,
"e": 1200,
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"text": "In this article we will be discussing the working, syntax and examples of forward_list::begin() and forward_list::end() functions in C++."
},
{
"code": null,
"e": 1476,
"s": 1200,
"text": "Forward list are sequence containers that al... |
How to find specific row with a MySQL query? | Let us first create a table −
mysql> create table DemoTable
(
UserId int,
UserName varchar(100)
);
Query OK, 0 rows affected (0.66 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values(100,'Chris');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable values(... | [
{
"code": null,
"e": 1092,
"s": 1062,
"text": "Let us first create a table −"
},
{
"code": null,
"e": 1204,
"s": 1092,
"text": "mysql> create table DemoTable\n(\n UserId int,\n UserName varchar(100)\n);\nQuery OK, 0 rows affected (0.66 sec)"
},
{
"code": null,
"e"... |
C++ Program to Check Whether an Undirected Graph Contains a Eulerian Path | The Euler path is a path; by which we can visit every node exactly once. We can use the same edges for multiple times. The Euler Circuit is a special type of Euler path. When the starting vertex of the Euler path is also connected with the ending vertex of that path.
To detect the Euler Path, we have to follow these co... | [
{
"code": null,
"e": 1330,
"s": 1062,
"text": "The Euler path is a path; by which we can visit every node exactly once. We can use the same edges for multiple times. The Euler Circuit is a special type of Euler path. When the starting vertex of the Euler path is also connected with the ending vertex... |
Logistic Regression as a Nonlinear Classifier | by Ashok Chilakapati | Towards Data Science | Logistic Regression has traditionally been used as a linear classifier, i.e. when the classes can be separated in the feature space by linear boundaries. That can be remedied however if we happen to have a better idea as to the shape of the decision boundary...
Logistic regression is known and used as a linear classifi... | [
{
"code": null,
"e": 434,
"s": 172,
"text": "Logistic Regression has traditionally been used as a linear classifier, i.e. when the classes can be separated in the feature space by linear boundaries. That can be remedied however if we happen to have a better idea as to the shape of the decision bound... |
C++ Program For Stock Buy Sell To Maximize Profit - GeeksforGeeks | 22 Dec, 2021
The cost of a stock on each day is given in an array, find the max profit that you can make by buying and selling in those days. For example, if the given array is {100, 180, 260, 310, 40, 535, 695}, the maximum profit can earned by buying on day 0, selling on day 3. Again buy on day 4 and sell on day 6. I... | [
{
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},
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"code": null,
"e": 25145,
"s": 24742,
"text": "The cost of a stock on each day is given in an array, find the max profit that you can make by buying and selling in those days. For example, if the given array is... |
Count equal element pairs in the given array - GeeksforGeeks | 25 May, 2021
Given an array arr[] of N integers representing the lengths of the gloves, the task is to count the maximum possible pairs of gloves from the given array. Note that a glove can only pair with a same-sized glove and it can only be part of a single pair.
Examples:
Input: arr[] = {6, 5, 2, 3, 5, 2, 2, 1} Out... | [
{
"code": null,
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"s": 24978,
"text": "\n25 May, 2021"
},
{
"code": null,
"e": 25259,
"s": 25006,
"text": "Given an array arr[] of N integers representing the lengths of the gloves, the task is to count the maximum possible pairs of gloves from the given array. Note tha... |
Operating Systems | Memory Management | Question 9 - GeeksforGeeks | 28 Jun, 2021
A computer uses 46–bit virtual address, 32–bit physical address, and a three–level paged page table organization. The page table base register stores the base address of the first–level table (T1), which occupies exactly one page. Each entry of T1 stores the base address of a page of the second–level table... | [
{
"code": null,
"e": 24607,
"s": 24579,
"text": "\n28 Jun, 2021"
},
{
"code": null,
"e": 25227,
"s": 24607,
"text": "A computer uses 46–bit virtual address, 32–bit physical address, and a three–level paged page table organization. The page table base register stores the base addr... |
Target Sum | Practice | GeeksforGeeks | Given an array of integers A[] of length N and an integer target.
You want to build an expression out of A by adding one of the symbols '+' and '-' before each integer in A and then concatenate all the integers.
For example, if arr = {2, 1}, you can add a '+' before 2 and a '-' before 1 and concatenate them to build th... | [
{
"code": null,
"e": 450,
"s": 238,
"text": "Given an array of integers A[] of length N and an integer target.\nYou want to build an expression out of A by adding one of the symbols '+' and '-' before each integer in A and then concatenate all the integers."
},
{
"code": null,
"e": 579,
... |
AIML - First Application | Let us start creating first bot which will simply greet a user with Hello User! when a user types Hello Alice.
As in AIML Environment Setup, we've extracted content of program-ab in C > ab with the following directory structure.
c:/ab/bots
Stores AIML bots
c:/ab/lib
Stores Java libraries
c:/ab/out
Java class file direc... | [
{
"code": null,
"e": 1922,
"s": 1811,
"text": "Let us start creating first bot which will simply greet a user with Hello User! when a user types Hello Alice."
},
{
"code": null,
"e": 2040,
"s": 1922,
"text": "As in AIML Environment Setup, we've extracted content of program-ab in ... |
Python | Replace elements in second list with index of same element in first list | 18 Aug, 2021
Given two lists of strings, where first list contains all elements of second list, the task is to replace every element in second list with index of elements in first list.Method #1: Using Iteration
Python3
# Python code to replace every element# in second list with index of first element. # List Initial... | [
{
"code": null,
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"text": "\n18 Aug, 2021"
},
{
"code": null,
"e": 229,
"s": 28,
"text": "Given two lists of strings, where first list contains all elements of second list, the task is to replace every element in second list with index of elements in first list.Met... |
How does Selenium Webdriver handle SSL certificate in Chrome? | We can handle SSL certificate with Selenium webdriver in Chrome browser. A SSL is the standardized protocol used to create a connection between the browser and server.
The information exchanged via a SSL certificate is encrypted and it verifies if the information is sent to the correct server. It authenticates a websit... | [
{
"code": null,
"e": 1355,
"s": 1187,
"text": "We can handle SSL certificate with Selenium webdriver in Chrome browser. A SSL is the standardized protocol used to create a connection between the browser and server."
},
{
"code": null,
"e": 1547,
"s": 1355,
"text": "The informatio... |
ReactJS | Lists | 12 Jan, 2021
Lists are very useful when it comes to developing the UI of any website. Lists are mainly used for displaying menus in a website, for example, the navbar menu. In regular JavaScript, we can use arrays for creating lists. We can create lists in React in a similar manner as we do in regular JavaScript. We wi... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n12 Jan, 2021"
},
{
"code": null,
"e": 564,
"s": 52,
"text": "Lists are very useful when it comes to developing the UI of any website. Lists are mainly used for displaying menus in a website, for example, the navbar menu. In regular Jav... |
How to make a div stick to the top of the screen ? | 12 May, 2022
In this article, we will know how to make a sticky element that will stick to the top of the screen. Here, we have used the div to stick to the top of the screen. We will understand its implementation by using the below 2 methods.
Method 1: Using the sticky value of the position property
The ‘sticky’ value... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n12 May, 2022"
},
{
"code": null,
"e": 259,
"s": 28,
"text": "In this article, we will know how to make a sticky element that will stick to the top of the screen. Here, we have used the div to stick to the top of the screen. We will unde... |
Java Program to Find Duplicate Words in a Regular Expression | 20 Nov, 2020
Given an Expression which is represented by String. The task is to find duplicate elements in a Regular Expression in Java. Use a map or set data structures for identifying the uniqueness of words in a sentence.
Examples:
Input : str = " Hi, I am Hritik and I am a programmer. "
Output: I am
Explanation: We... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n20 Nov, 2020"
},
{
"code": null,
"e": 240,
"s": 28,
"text": "Given an Expression which is represented by String. The task is to find duplicate elements in a Regular Expression in Java. Use a map or set data structures for identifying th... |
Python SQLite – Create Table | 13 Jan, 2022
In this article, we will discuss how can we create tables in the SQLite database from the Python program using the sqlite3 module.
In SQLite database we use the following syntax to create a table:
CREATE TABLE database_name.table_name(
column1 datatype PRIMARY KEY(on... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n13 Jan, 2022"
},
{
"code": null,
"e": 160,
"s": 28,
"text": "In this article, we will discuss how can we create tables in the SQLite database from the Python program using the sqlite3 module. "
},
{
"code": null,
"e": 226,
... |
Python – Odd elements indices | 19 Feb, 2020
Sometimes, while working with Python lists, we can have a problem in which we wish to find Odd elements. This task can occur in many domains such as web development and while working with Databases. We might sometimes, require to just find the indices of them. Let’s discuss certain way to find indices of O... | [
{
"code": null,
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"s": 0,
"text": "\n19 Feb, 2020"
},
{
"code": null,
"e": 348,
"s": 28,
"text": "Sometimes, while working with Python lists, we can have a problem in which we wish to find Odd elements. This task can occur in many domains such as web development and while ... |
How to redirect to generated URL with ExpressJS? | 08 Apr, 2021
In this article I’m showing you how to redirect users using ExpressJS. First of all, when you want to redirect the user? Here are some real scenario.
Example, when user successfully login you can redirect him to the dashboard. Another instance, when user request for reset password, generally we generate an... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n08 Apr, 2021"
},
{
"code": null,
"e": 178,
"s": 28,
"text": "In this article I’m showing you how to redirect users using ExpressJS. First of all, when you want to redirect the user? Here are some real scenario."
},
{
"code": nul... |
Islands in a graph using BFS | 06 Jul, 2021
Given a boolean 2D matrix, find the number of islands. A group of connected 1s forms an island. For example, the below matrix contains 5 islands
Example:
Input : mat[][] = {{1, 1, 0, 0, 0},
{0, 1, 0, 0, 1},
{1, 0, 0, 1, 1},
{0, 0, 0, 0, 0},
... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n06 Jul, 2021"
},
{
"code": null,
"e": 199,
"s": 54,
"text": "Given a boolean 2D matrix, find the number of islands. A group of connected 1s forms an island. For example, the below matrix contains 5 islands"
},
{
"code": null,
... |
Can we define a method name same as class name in Java? | Yes, It is allowed to define a method with the same name as that of a class. There is no compile-time or runtime error will occur. But this is not recommended as per coding standards in Java. Normally the constructor name and class name always the same in Java.
Live Demo
public class MethodNameTest {
private String ... | [
{
"code": null,
"e": 1324,
"s": 1062,
"text": "Yes, It is allowed to define a method with the same name as that of a class. There is no compile-time or runtime error will occur. But this is not recommended as per coding standards in Java. Normally the constructor name and class name always the same ... |
Position of rightmost different bit - GeeksforGeeks | 01 Jul, 2021
Given two numbers m and n. Find the position of the rightmost different bit in the binary representation of numbers. It is guaranteed that such a bit exists.
Examples:
Input: m = 11, n = 9
Output: 2
(11)10 = (1011)2
(9)10 = (1001)2
It can be seen that 2nd bit from
the right is different
Input: m = 52, ... | [
{
"code": null,
"e": 24263,
"s": 24235,
"text": "\n01 Jul, 2021"
},
{
"code": null,
"e": 24422,
"s": 24263,
"text": "Given two numbers m and n. Find the position of the rightmost different bit in the binary representation of numbers. It is guaranteed that such a bit exists. "
}... |
Get last N elements from given list in Python | Given a Python list we want to find out only e e the last few elements.
The number of positions to be extracted is given. Based on that we design is slicing technique to slice elements from the end of the list by using a negative sign.
Live Demo
listA = ['Mon','Tue','Wed','Thu','Fri','Sat']
# Given list
print("Given l... | [
{
"code": null,
"e": 1134,
"s": 1062,
"text": "Given a Python list we want to find out only e e the last few elements."
},
{
"code": null,
"e": 1298,
"s": 1134,
"text": "The number of positions to be extracted is given. Based on that we design is slicing technique to slice elemen... |
Check if given array can be rearranged such that mean is equal to median - GeeksforGeeks | 24 Sep, 2021
Given sorted float array arr[]. Check if arr[] can be rearranged such that its mean is equal to its median.
Examples:
Input: arr[] = {1.0, 3.0, 6.0, 9.0, 12.0, 32.0}Output: YesExplanation: The mean of given array is (1.0 + 3.0 + 6.0 + 9.0 + 12.0 + 32.0) / 6 = 10.5. Rearranging given array as {1.0, 3.0, 9.0... | [
{
"code": null,
"e": 24742,
"s": 24714,
"text": "\n24 Sep, 2021"
},
{
"code": null,
"e": 24850,
"s": 24742,
"text": "Given sorted float array arr[]. Check if arr[] can be rearranged such that its mean is equal to its median."
},
{
"code": null,
"e": 24860,
"s": 24... |
Python | Pandas DataFrame.columns | 20 Feb, 2019
Pandas DataFrame is a two-dimensional size-mutable, potentially heterogeneous tabular data structure with labeled axes (rows and columns). Arithmetic operations align on both row and column labels. It can be thought of as a dict-like container for Series objects. This is the primary data structure of the P... | [
{
"code": null,
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"s": 0,
"text": "\n20 Feb, 2019"
},
{
"code": null,
"e": 342,
"s": 28,
"text": "Pandas DataFrame is a two-dimensional size-mutable, potentially heterogeneous tabular data structure with labeled axes (rows and columns). Arithmetic operations align on both ... |
Queue in C++ Standard Template Library (STL) | 06 Jul, 2022
Queues are a type of container adaptors that operate in a first in first out (FIFO) type of arrangement. Elements are inserted at the back (end) and are deleted from the front. Queues use an encapsulated object of deque or list (sequential container class) as its underlying container, providing a specific ... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n06 Jul, 2022"
},
{
"code": null,
"e": 407,
"s": 52,
"text": "Queues are a type of container adaptors that operate in a first in first out (FIFO) type of arrangement. Elements are inserted at the back (end) and are deleted from the fron... |
Scala Map count() method with example | 13 Aug, 2019
The count() method is utilized to count pair of keys in the Map.
Method Definition: def count(p: ((A, B)) => Boolean): Int
Return Type: It returns the number of keys present in the map that satisfies the given predicate.
Example #1:
// Scala program of count()// method // Creating objectobject GfG{ ... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n13 Aug, 2019"
},
{
"code": null,
"e": 93,
"s": 28,
"text": "The count() method is utilized to count pair of keys in the Map."
},
{
"code": null,
"e": 151,
"s": 93,
"text": "Method Definition: def count(p: ((A, B)) =>... |
Producer Consumer Problem and its Implementation with C++ | 31 May, 2021
Overview :In this article, we will discuss the Producer-Consumer Problem and its Implementation with C++. The Producer-Consumer problem is a classical two-process synchronization problem. Let’s discuss it one by one.
Problem Statement :There is one Producer and one Consumer in the producer-consumer problem... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n31 May, 2021"
},
{
"code": null,
"e": 269,
"s": 52,
"text": "Overview :In this article, we will discuss the Producer-Consumer Problem and its Implementation with C++. The Producer-Consumer problem is a classical two-process synchroniza... |
Print all pairs of anagrams in a given array of strings | 22 Jun, 2022
Given an array of strings, find all anagram pairs in the given array. Example:
Input: arr[] = {"geeksquiz", "geeksforgeeks", "abcd",
"forgeeksgeeks", "zuiqkeegs"};
Output: (geeksforgeeks, forgeeksgeeks), (geeksquiz, zuiqkeegs)
We can find whether two strings are anagram or not in linear... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n22 Jun, 2022"
},
{
"code": null,
"e": 135,
"s": 54,
"text": "Given an array of strings, find all anagram pairs in the given array. Example: "
},
{
"code": null,
"e": 301,
"s": 135,
"text": "Input: arr[] = {\"geeks... |
Optimum location of point to minimize total distance | 25 Jun, 2022
Given a set of points as and a line as ax+by+c = 0. We need to find a point on given line for which sum of distances from given set of points is minimum.
Example:
In above figure optimum location of point of x - y - 3 = 0 line
is (2, -1), whose total distance with other points is 20.77,
which is minimu... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n25 Jun, 2022"
},
{
"code": null,
"e": 207,
"s": 52,
"text": "Given a set of points as and a line as ax+by+c = 0. We need to find a point on given line for which sum of distances from given set of points is minimum. "
},
{
"code... |
How to Change the Background Color After Clicking the Button in Android? | 14 May, 2021
In this article, we will see how we can change the background of the screen by clicking a button. For this, we will be using the onClick() method. When we click on the button the onClick function is called. To set the click handler event for the button we need to define the android:onClick attribute in the... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n14 May, 2021"
},
{
"code": null,
"e": 653,
"s": 52,
"text": "In this article, we will see how we can change the background of the screen by clicking a button. For this, we will be using the onClick() method. When we click on the button... |
Binding rows and columns of a Data Frame in R – bind_rows() and bind_cols() Function | 26 May, 2020
bind_rows() function in R Programming is used to combine rows of two data frames.
Syntax:bind_rows(data1, data2, id)
Parameter:id: dataframe identifierdata1, data2: data frame to combine
Example: Combining Rows
# R program to illustrate# combine rows # Install dplyr packageinstall.packages("dplyr") # L... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n26 May, 2020"
},
{
"code": null,
"e": 110,
"s": 28,
"text": "bind_rows() function in R Programming is used to combine rows of two data frames."
},
{
"code": null,
"e": 145,
"s": 110,
"text": "Syntax:bind_rows(data1, ... |
Sorting 2D Vector in C++ | Set 3 (By number of columns) | 20 Dec, 2021
We have discussed some of the cases of sorting 2D vector in below set 1 and set 2.Sorting 2D Vector in C++ | Set 1 (By row and column) Sorting 2D Vector in C++ | Set 2 (In descending order by row and column)More cases are discussed in this articleAs mentioned in one of the article published of this set, A ... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n20 Dec, 2021"
},
{
"code": null,
"e": 507,
"s": 52,
"text": "We have discussed some of the cases of sorting 2D vector in below set 1 and set 2.Sorting 2D Vector in C++ | Set 1 (By row and column) Sorting 2D Vector in C++ | Set 2 (In de... |
PrintWriter print(int) method in Java with Examples | 31 Jan, 2019
The print(int) method of PrintWriter Class in Java is used to print the specified int value on the stream. This int value is taken as a parameter.
Syntax:
public void print(int intValue)
Parameters: This method accepts a mandatory parameter intValue which is the int value to be written on the stream.
Retur... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n31 Jan, 2019"
},
{
"code": null,
"e": 175,
"s": 28,
"text": "The print(int) method of PrintWriter Class in Java is used to print the specified int value on the stream. This int value is taken as a parameter."
},
{
"code": null,
... |
Java.lang.Process class in Java | 08 Mar, 2022
The abstract Process class a process- that is, an executing program. Methods provided by the Process is used to perform input, output, waiting for the process to complete, checking exit status of the process and destroying process.
It extends class Object.
It is used primarily as a superclass for the type ... | [
{
"code": null,
"e": 54,
"s": 26,
"text": "\n08 Mar, 2022"
},
{
"code": null,
"e": 286,
"s": 54,
"text": "The abstract Process class a process- that is, an executing program. Methods provided by the Process is used to perform input, output, waiting for the process to complete, ch... |
Difference Array | Range update query in O(1) | Difficulty Level :
Medium
Consider an array A[] of integers and following two types of queries.
update(l, r, x) : Adds x to all values from A[l] to A[r] (both inclusive).printArray() : Prints the current modified array.
update(l, r, x) : Adds x to all values from A[l] to A[r] (both inclusive).
printArray() : Prints t... | [
{
"code": null,
"e": 26,
"s": 0,
"text": "Difficulty Level :\nMedium"
},
{
"code": null,
"e": 98,
"s": 26,
"text": "Consider an array A[] of integers and following two types of queries. "
},
{
"code": null,
"e": 222,
"s": 98,
"text": "update(l, r, x) : Adds x... |
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