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C Program for Tower of Hanoi | The tower of Hanoi is a mathematical puzzle. It consists of three rods and a number of disks of different sizes which can slide onto any rod. The puzzle starts with the disks in a neat stack in ascending order of size on one rod, the smallest at the top. We have to obtain the same stack on the third rod.
The objective ... | [
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"text": "The tower of Hanoi is a mathematical puzzle. It consists of three rods and a number of disks of different sizes which can slide onto any rod. The puzzle starts with the disks in a neat stack in ascending order of size on one rod, the smallest at the top... |
Pandas - Plotting | Pandas uses the plot() method to create
diagrams.
We can use Pyplot, a submodule of the Matplotlib library to visualize the
diagram on the screen.
Read more about Matplotlib in our Matplotlib Tutorial.
Import pyplot from Matplotlib and visualize our DataFrame:
The examples in this page uses a CSV file called: 'data.c... | [
{
"code": null,
"e": 51,
"s": 0,
"text": "Pandas uses the plot() method to create \ndiagrams."
},
{
"code": null,
"e": 149,
"s": 51,
"text": "We can use Pyplot, a submodule of the Matplotlib library to visualize the \ndiagram on the screen."
},
{
"code": null,
"e": 20... |
How to Install Apache Kafka Using Docker — The Easy Way | by Dario Radečić | Towards Data Science | In a world of big data, a reliable streaming platform is a must. That’s where Kafka comes in. And today, you’ll learn how to install it on your machine and create your first Kafka topic.
Want to sit back and watch? I’ve got you covered:
Today’s article covers the following topics:
Approaches to installing Kafka
Termino... | [
{
"code": null,
"e": 359,
"s": 172,
"text": "In a world of big data, a reliable streaming platform is a must. That’s where Kafka comes in. And today, you’ll learn how to install it on your machine and create your first Kafka topic."
},
{
"code": null,
"e": 409,
"s": 359,
"text": ... |
Program to print its script name as output in Python | In this tutorial, we are going to write a program that prints the name of the Python script file. We can find the script name using the sys module.
The sys module will store all the command line arguments of python command in the sys.argv list. The first element in the list is the script name. We can extract it from th... | [
{
"code": null,
"e": 1210,
"s": 1062,
"text": "In this tutorial, we are going to write a program that prints the name of the Python script file. We can find the script name using the sys module."
},
{
"code": null,
"e": 1413,
"s": 1210,
"text": "The sys module will store all the ... |
Cassandra - Drop Index | You can drop an index using the command DROP INDEX. Its syntax is as follows −
DROP INDEX <identifier>
Given below is an example to drop an index of a column in a table. Here we are dropping the index of the column name in the table emp.
cqlsh:tp> drop index name;
You can drop an index of a table using the execute() ... | [
{
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"text": "You can drop an index using the command DROP INDEX. Its syntax is as follows −"
},
{
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"text": "DROP INDEX <identifier>\n"
},
{
"code": null,
"e": 2526,
"s": 2391,
"text": "Given ... |
Google Guice - Optional Injection | Injection is a process of injecting dependeny into an object. Optional injection means injecting the dependency if exists. Method and Field injections may be optionally dependent and should have some default value if dependency is not present. See the example below.
Create a java class named GuiceTester.
GuiceTester.ja... | [
{
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"e": 2369,
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"text": "Injection is a process of injecting dependeny into an object. Optional injection means injecting the dependency if exists. Method and Field injections may be optionally dependent and should have some default value if dependency is not present. See the e... |
Bounded Types with Generics in Java - GeeksforGeeks | 15 Mar, 2022
There may be times when you want to restrict the types that can be used as type arguments in a parameterized type. For example, a method that operates on numbers might only want to accept instances of Numbers or their subclasses. This is what bounded type parameters are for.
Sometimes we don’t want the wh... | [
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"text": "\n15 Mar, 2022"
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{
"code": null,
"e": 24341,
"s": 24064,
"text": "There may be times when you want to restrict the types that can be used as type arguments in a parameterized type. For example, a method that operates on numbers m... |
Type of 'this' Pointer in C++ - GeeksforGeeks | 06 Jan, 2022
this pointer refers to the current object of the class and passes it as a parameter to another method. In C++, this pointer is passed as a hidden argument to all non-static member function calls.
Type of ‘this’ pointer: The type of this depends upon function declaration. The type of this pointer is either... | [
{
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"text": "\n06 Jan, 2022"
},
{
"code": null,
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"text": "this pointer refers to the current object of the class and passes it as a parameter to another method. In C++, this pointer is passed as a hidden argument to all n... |
Equals(String, String) Method in C# | The Equals() method in C# is used to check whether two String objects have the same value or not.
bool string.Equals(string s1, string s2)
Above, s1 and s2 are the strings to be compared.
Live Demo
using System;
public class Demo {
public static void Main(string[] args) {
string s1 = "Kevin";
string s2 ... | [
{
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"text": "The Equals() method in C# is used to check whether two String objects have the same value or not."
},
{
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"s": 1160,
"text": "bool string.Equals(string s1, string s2)"
},
{
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... |
UML - Overview | UML is a standard language for specifying, visualizing, constructing, and documenting the
artifacts of software systems.
UML was created by the Object Management Group (OMG) and UML 1.0 specification draft was proposed to the OMG in January 1997.
OMG is continuously making efforts to create a truly industry standard.
U... | [
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"text": "UML is a standard language for specifying, visualizing, constructing, and documenting the\nartifacts of software systems."
},
{
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"text": "UML was created by the Object Management Group (OMG) and UML... |
Binary Operators Overloading in C++ | The binary operators take two arguments and following are the examples of Binary operators. You use binary operators very frequently like addition (+) operator, subtraction (-) operator and division (/) operator.
Following example explains how addition (+) operator can be overloaded. Similar way, you can overload subtr... | [
{
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"text": "The binary operators take two arguments and following are the examples of Binary operators. You use binary operators very frequently like addition (+) operator, subtraction (-) operator and division (/) operator."
},
{
"code": null,
"e": 267... |
Different types of MySQL Triggers (with examples) - GeeksforGeeks | 04 Jul, 2019
A MySQL trigger is a stored program (with queries) which is executed automatically to respond to a specific event such as insertion, updation or deletion occurring in a table.
There are 6 different types of triggers in MySQL:
1. Before Update Trigger:As the name implies, it is a trigger which enacts before... | [
{
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{
"code": null,
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"text": "A MySQL trigger is a stored program (with queries) which is executed automatically to respond to a specific event such as insertion, updation or deletion occurring... |
k nearest neighbors computational complexity | by Jakub Adamczyk | Towards Data Science | kNN (k nearest neighbors) is one of the simplest ML algorithms, often taught as one of the first algorithms during introductory courses. It’s relatively simple but quite powerful, although rarely time is spent on understanding its computational complexity and practical issues. It can be used both for classification and... | [
{
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"text": "kNN (k nearest neighbors) is one of the simplest ML algorithms, often taught as one of the first algorithms during introductory courses. It’s relatively simple but quite powerful, although rarely time is spent on understanding its computational complexity... |
What is XMLHTTPRequest Object ? - GeeksforGeeks | 08 Apr, 2022
XMLHTTPRequest object is an API which is used for fetching data from the server. XMLHTTPRequest is basically used in Ajax programming. It retrieve any type of data such as json, xml, text etc. It request for data in background and update the page without reloading page on client side. An object of XMLHTTPR... | [
{
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"text": "\n08 Apr, 2022"
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{
"code": null,
"e": 26611,
"s": 26160,
"text": "XMLHTTPRequest object is an API which is used for fetching data from the server. XMLHTTPRequest is basically used in Ajax programming. It retrieve any type of data... |
Perl | int() function - GeeksforGeeks | 25 Jun, 2019
int() function in Perl returns the integer part of given value. It returns $_ if no value provided. Note that $_ is default input which is 0 in this case. The int() function does not do rounding. For rounding up a value to an integer, sprintf is used.
Syntax: int(VAR)
Parameters:VAR: value which is to be c... | [
{
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"text": "\n25 Jun, 2019"
},
{
"code": null,
"e": 25619,
"s": 25367,
"text": "int() function in Perl returns the integer part of given value. It returns $_ if no value provided. Note that $_ is default input which is 0 in this case. The int(... |
Why are Python Strings Immutable? - GeeksforGeeks | 26 Dec, 2020
An unchanging article alludes to the item which is once made can’t change its worth all its lifetime. Attempt to execute the accompanying code:
Python3
name_1 = "Aarun" name_1[0] = 'T'
You will get a mistake message when you need to change the substance of the string.
Traceback (latest call last):
... | [
{
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"text": "\n26 Dec, 2020"
},
{
"code": null,
"e": 25707,
"s": 25561,
"text": "An unchanging article alludes to the item which is once made can’t change its worth all its lifetime. Attempt to execute the accompanying code: "
},
{
"co... |
Working with Date and Time in Julia - GeeksforGeeks | 28 Jul, 2020
Julia provides a library to use Dates for dealing with date and time. The Dates module comes inbuilt with the Julia we just need to import it in order to use it. Now we need to prefix every function with an explicit type Dates, e.g Dates.Date. If you don’t want to prefix on each function just add using Dat... | [
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},
{
"code": null,
"e": 26012,
"s": 25601,
"text": "Julia provides a library to use Dates for dealing with date and time. The Dates module comes inbuilt with the Julia we just need to import it in order to use it. N... |
JavaScript TypeError - Can't define property "X": "Obj" is not extensible - GeeksforGeeks | 29 Jul, 2020
This JavaScript exception can’t define property “x”: “obj” is not extensible occurs when Object.preventExtensions() used on an object to make it no longer extensible, So now, New properties can not be added to the object.
Message:
TypeError: Cannot create property for a non-extensible object (Edge)
TypeErr... | [
{
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"text": "\n29 Jul, 2020"
},
{
"code": null,
"e": 26767,
"s": 26545,
"text": "This JavaScript exception can’t define property “x”: “obj” is not extensible occurs when Object.preventExtensions() used on an object to make it no longer extensib... |
Print characters and their frequencies in order of occurrence - GeeksforGeeks | 09 Feb, 2022
Given string str containing only lowercase characters. The problem is to print the characters along with their frequency in the order of their occurrence and in the given format explained in the examples below.
Examples:
Input : str = "geeksforgeeks"
Output : g2 e4 k2 s2 f1 o1 r1
Input : str = "elephant"... | [
{
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"text": "\n09 Feb, 2022"
},
{
"code": null,
"e": 26254,
"s": 26043,
"text": "Given string str containing only lowercase characters. The problem is to print the characters along with their frequency in the order of their occurrence and in th... |
Count words that appear exactly two times in an array of words - GeeksforGeeks | 07 Aug, 2021
Given an array of n words. Some words are repeated twice, we need to count such words.
Examples:
Input : s[] = {"hate", "love", "peace", "love",
"peace", "hate", "love", "peace",
"love", "peace"};
Output : 1
There is only one word "hate" that appears twice
Input : s[] = {... | [
{
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"text": "\n07 Aug, 2021"
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{
"code": null,
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"text": "Given an array of n words. Some words are repeated twice, we need to count such words. "
},
{
"code": null,
"e": 25123,
"s": 25112,
"text": "Ex... |
C++ Map Library - find() Function | The C++ function std::map::find() finds an element associated with key k.
If operation succeeds then methods returns iterator pointing to the element otherwise it returns an iterator pointing the map::end().
Following is the declaration for std::map::find() function form std::map header.
iterator find (const key_type& ... | [
{
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"text": "The C++ function std::map::find() finds an element associated with key k."
},
{
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"text": "If operation succeeds then methods returns iterator pointing to the element otherwise it returns an iterator... |
Machine Learning With Spark. A distributed Machine Learning... | by MA Raza, Ph.D. | Towards Data Science | This is a comprehensive tutorial on using the Spark distributed machine learning framework to build a scalable ML data pipeline. I will cover the basic machine learning algorithms implemented in Spark MLlib library and through this tutorial, I will use the PySpark in python environment.
Machine learning is getting popu... | [
{
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"text": "This is a comprehensive tutorial on using the Spark distributed machine learning framework to build a scalable ML data pipeline. I will cover the basic machine learning algorithms implemented in Spark MLlib library and through this tutorial, I will use th... |
cfdisk command in Linux with examples - GeeksforGeeks | 15 May, 2019
cfdisk command is used to create, delete, and modify partitions on a disk device. It displays or manipulates the disk partition table by providing a text-based “graphical” interface.
cfdisk /dev/sda
Example:
After running you get a prompt like this:
Choose gpt from the list. Now you will see a partition ta... | [
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},
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"code": null,
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"text": "cfdisk command is used to create, delete, and modify partitions on a disk device. It displays or manipulates the disk partition table by providing a text-based “gr... |
PHP | array_column() Function - GeeksforGeeks | 29 Sep, 2021
The array_column() is an inbuilt function in PHP and is used to return the values from a single column in the input array.
Syntax:
array array_column($input_array, $column_number, $index_key);
Parameters: Out of the three parameters, two are mandatory and one is optional. Let’s look at the parameters.
$... | [
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"text": "The array_column() is an inbuilt function in PHP and is used to return the values from a single column in the input array. "
},
{
"code": null,
"e": 40... |
Python 3 Tutorial | Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. It was created by Guido van Rossum during 1985- 1990. Like Perl, Python source code is also available under the GNU General Public License (GPL). Python is named after a TV Show called ëMonty Pythonís Flying Ci... | [
{
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"text": "Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. It was created by Guido van Rossum during 1985- 1990. Like Perl, Python source code is also available under the GNU General Public License (GPL).... |
How to check if input is numeric in C++? | Here we will see how to check whether a given input is numeric string or a normal string. The numeric string will hold all characters that are in range 0 – 9. The solution is very simple, we will simply go through each characters one by one, and check whether it is numeric or not. If it is numeric, then point to the ne... | [
{
"code": null,
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"text": "Here we will see how to check whether a given input is numeric string or a normal string. The numeric string will hold all characters that are in range 0 – 9. The solution is very simple, we will simply go through each characters one by one, and check w... |
Find letter's position in Alphabet using Bit operation in C++ | In this problem, we are given a string str consisting of english alphabets. Our task is to find the letter's position in the Alphabet using the Bit operation.
Problem Description: Here, we will return the position of each character of the string as it is in english alphabets.
The characters of the string are case-inse... | [
{
"code": null,
"e": 1222,
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"text": "In this problem, we are given a string str consisting of english alphabets. Our task is to find the letter's position in the Alphabet using the Bit operation. "
},
{
"code": null,
"e": 1340,
"s": 1222,
"text": "Problem Description: H... |
How to Scrape Youtube Comments with Python | by François St-Amant | Towards Data Science | The first part of any Natural Language Processing project is to get a database. Indeed, having the whole dataset cleaned and labeled only applies on Kaggle, not in real life.
When it comes to sentiment analysis projects, I feel like Youtube comments represent a great and underused source of data. You easily have access... | [
{
"code": null,
"e": 347,
"s": 172,
"text": "The first part of any Natural Language Processing project is to get a database. Indeed, having the whole dataset cleaned and labeled only applies on Kaggle, not in real life."
},
{
"code": null,
"e": 567,
"s": 347,
"text": "When it com... |
How to convert UTC date time into local date time using JavaScript ? | 14 Apr, 2022
Given an UTC date and the task is to convert UTC date time into local date-time using JavaScript toLocaleString() function.
Syntax:
var theDate = new Date(Date.parse('06/14/2020 4:41:48 PM UTC'))
theDate.toLocaleString()
JavaScript code:
javascript
// Function to convert UTC date-time// to Local date-time... | [
{
"code": null,
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"text": "\n14 Apr, 2022"
},
{
"code": null,
"e": 152,
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"text": "Given an UTC date and the task is to convert UTC date time into local date-time using JavaScript toLocaleString() function."
},
{
"code": null,
"e": 160,
"s": ... |
usermod command in Linux with Examples | 16 Feb, 2022
usermod command or modify user is a command in Linux that is used to change the properties of a user in Linux through the command line. After creating a user we have to sometimes change their attributes like password or login directory etc. so in order to do that we use the Usermod command. The information... | [
{
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"text": "\n16 Feb, 2022"
},
{
"code": null,
"e": 406,
"s": 53,
"text": "usermod command or modify user is a command in Linux that is used to change the properties of a user in Linux through the command line. After creating a user we have to somet... |
D3.js scaleLinear() method | 19 Aug, 2020
The d3.scaleLinear() method is used to create a visual scale point. This method is used to transform data values into visual variables.
Syntax:
d3.scaleLinear();
Parameters: This method takes no parameters.
Return Value: This method returns a Linear scale function.
Example 1: Plotting scale points.
<!DOCTY... | [
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"code": null,
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"text": "The d3.scaleLinear() method is used to create a visual scale point. This method is used to transform data values into visual variables."
},
{
"code": null,
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How to skip blank and null values in MySQL? | To skip blank and null in MySQL, use the following syntax:
select *from yourTableName where yourColumnName IS NOT NULL AND yourColumnName <> '';
Let us first create a table:
mysql> create table DemoTable (Id int, FirstName varchar(20));
Query OK, 0 rows affected (0.66 sec)
Following is the query to insert records in th... | [
{
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"text": "To skip blank and null in MySQL, use the following syntax:"
},
{
"code": null,
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"s": 1246,
"text": "select *from yourTableName where yourColumnName IS NOT NULL AND yourColumnName <> '';"
},
{
"code": null,
"e": ... |
How to make bootstrap button transparent ? | 22 Apr, 2020
Buttons can be made transparent in Bootstrap by using the built-in class property:
Syntax:
<button class="btn bg-transparent">
Transparent button
</button>
Description:
The <button> tag is used to specify the button element in HTML, which gets executed on pressed.
Generally, the properties of bootstrap... | [
{
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{
"code": null,
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"text": "Buttons can be made transparent in Bootstrap by using the built-in class property:"
},
{
"code": null,
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"text": "Syntax:"
},
{
"... |
Get the YouTube video ID from a URL using JavaScript | 31 May, 2019
Given a Youtube Video URL, The job is to get the Video ID from the URL using JavaScript. Here are few methods discussed.
split() method:This method is used to split a string into an array of substrings, and returns the new array.Syntax:string.split(separator, limit)
Parameters:separator: This parameter is ... | [
{
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{
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"text": "Given a Youtube Video URL, The job is to get the Video ID from the URL using JavaScript. Here are few methods discussed."
},
{
"code": null,
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Python | Convert list of string to list of list | 25 Jun, 2022
Many times, we come over the dumped data that is found in the string format and we require it to be represented in the actual list format in which it was actually found. This kind of problem of converting a list represented in string format back to list to perform tasks is quite common in web development. ... | [
{
"code": null,
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"s": 26,
"text": "\n25 Jun, 2022"
},
{
"code": null,
"e": 421,
"s": 54,
"text": "Many times, we come over the dumped data that is found in the string format and we require it to be represented in the actual list format in which it was actually found. This... |
Schedule a Python Script on PythonAnywhere | 23 Jan, 2020
Keeping the computer on 24/7 is not practical, so if you want to execute a Python script at a particular time every day, you probably need a computer that is ON all the time. To make this possible, a website PythonAnywhere gives you access to such a 24/7 computer. You can upload a Python script and schedul... | [
{
"code": null,
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"text": "\n23 Jan, 2020"
},
{
"code": null,
"e": 587,
"s": 52,
"text": "Keeping the computer on 24/7 is not practical, so if you want to execute a Python script at a particular time every day, you probably need a computer that is ON all the time.... |
Center any element in Bootstrap | Use the .center-block class in Bootstrap to center an element.
You can try to run the following code to implement the .center-block class:
Live Demo
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet">
<script src = "/scr... | [
{
"code": null,
"e": 1250,
"s": 1187,
"text": "Use the .center-block class in Bootstrap to center an element."
},
{
"code": null,
"e": 1326,
"s": 1250,
"text": "You can try to run the following code to implement the .center-block class:"
},
{
"code": null,
"e": 1336,
... |
How to get properties of Python cv2.VideoCapture object ? - GeeksforGeeks | 25 Nov, 2021
Let us see how we can get the properties from the cv2.VideoCapture objects and understand how they work. cv2.VideoCapture is a function of openCV library(used for computer vision, machine learning, and image processing) which allows working with video either by capturing via live webcam or by a video file.... | [
{
"code": null,
"e": 23901,
"s": 23873,
"text": "\n25 Nov, 2021"
},
{
"code": null,
"e": 24265,
"s": 23901,
"text": "Let us see how we can get the properties from the cv2.VideoCapture objects and understand how they work. cv2.VideoCapture is a function of openCV library(used for ... |
Is it possible to resume java execution after exception occurs? | An exception is an issue (run time error) occurred during the execution of a program. When an exception occurred the program gets terminated abruptly and, the code past the line that generated the exception never gets executed.
There are two types of exceptions in Java.
Unchecked Exception − An unchecked exception is t... | [
{
"code": null,
"e": 1290,
"s": 1062,
"text": "An exception is an issue (run time error) occurred during the execution of a program. When an exception occurred the program gets terminated abruptly and, the code past the line that generated the exception never gets executed."
},
{
"code": nul... |
Count number of equal pairs in a string - GeeksforGeeks | 31 Dec, 2019
Given a string s, find the number of pairs of characters that are same. Pairs (s[i], s[j]), (s[j], s[i]), (s[i], s[i]), (s[j], s[j]) should be considered different.
Examples :
Input: air
Output: 3
Explanation :
3 pairs that are equal are (a, a), (i, i) and (r, r)
Input : geeksforgeeks
Output : 31
The nai... | [
{
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"text": "\n31 Dec, 2019"
},
{
"code": null,
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"text": "Given a string s, find the number of pairs of characters that are same. Pairs (s[i], s[j]), (s[j], s[i]), (s[i], s[i]), (s[j], s[j]) should be considered different... |
A Tutorial on Luigi, the Spotify’s Pipeline | Towards Data Science | Luigi is a Python (2.7, 3.6, 3.7 tested) package that helps you build complex pipelines of batch jobs. It handles dependency resolution, workflow management, visualization, handling failures, command line integration, and much more.
Intro
Pros and Cons
Pipeline Structure:. Tasks. Targets. Parameters
Building Blocks
Exe... | [
{
"code": null,
"e": 404,
"s": 171,
"text": "Luigi is a Python (2.7, 3.6, 3.7 tested) package that helps you build complex pipelines of batch jobs. It handles dependency resolution, workflow management, visualization, handling failures, command line integration, and much more."
},
{
"code": ... |
Bootstrap 5 Dropdowns - GeeksforGeeks | 09 Feb, 2022
Bootstrap 5 is the latest major release by Bootstrap in which they have revamped the UI and made various changes. Dropdowns are toggleable, contextual overlays for displaying lists of links and more. They’re made interactive with the included Bootstrap dropdown JavaScript plugin. They’re toggled by clickin... | [
{
"code": null,
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"text": "\n09 Feb, 2022"
},
{
"code": null,
"e": 28728,
"s": 28360,
"text": "Bootstrap 5 is the latest major release by Bootstrap in which they have revamped the UI and made various changes. Dropdowns are toggleable, contextual overlays for... |
Elasticsearch - Search APIs | This API is used to search content in Elasticsearch. A user can search by sending a get request with query string as a parameter or they can post a query in the message body of post request. Mainly all the search APIS are multi-index, multi-type.
Elasticsearch allows us to search for the documents present in all the in... | [
{
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"text": "This API is used to search content in Elasticsearch. A user can search by sending a get request with query string as a parameter or they can post a query in the message body of post request. Mainly all the search APIS are multi-index, multi-type."
},
... |
SQLSERVER Tryit Editor v1.0 | SELECT CustomerName, ASCII(CustomerName) AS NumCodeOfFirstChar
FROM Customers;
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.
Y... | [
{
"code": null,
"e": 63,
"s": 0,
"text": "SELECT CustomerName, ASCII(CustomerName) AS NumCodeOfFirstChar"
},
{
"code": null,
"e": 79,
"s": 63,
"text": "FROM Customers;"
},
{
"code": null,
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Starting Data Visualization with the Julia Language and Jupyter Notebooks | by Alan Jones | Towards Data Science | A while ago I wrote about data visualization using Julia and online Jupyter Notebook environment called JuliaBox. At the time JuliaBox was a free service; unfortunately, that is no longer so — it’s not expensive but it isn’t free.
So here is a new version of that article where you use your own Jupyter Notebook environm... | [
{
"code": null,
"e": 402,
"s": 171,
"text": "A while ago I wrote about data visualization using Julia and online Jupyter Notebook environment called JuliaBox. At the time JuliaBox was a free service; unfortunately, that is no longer so — it’s not expensive but it isn’t free."
},
{
"code": nu... |
Hailstone Numbers - GeeksforGeeks | 29 Apr, 2021
We are provided with a number N. Our task is to generate all the Hailstone Numbers from N and find the number of steps taken by N to reduce to
Collatz Conjecture: A problem posed by L. Collatz in 1937, also called the 3x+1 mapping, 3n+1 problem. Let N be a integer. According to Collatz conjecture, if we ke... | [
{
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"text": "\n29 Apr, 2021"
},
{
"code": null,
"e": 24468,
"s": 24325,
"text": "We are provided with a number N. Our task is to generate all the Hailstone Numbers from N and find the number of steps taken by N to reduce to"
},
{
"code"... |
Deep Learning with PyTorch. First contact with PyTorch for... | by Jordi TORRES.AI | Towards Data Science | We are to going to be using PyTorch in many of the posts in this series, so the reader need to make sure that she/he is familiar with it. This post will introduce the reader to the basics features of PyTorch which enables us to implement Deep Learning models using Python language. The post doesn’t pretend to be a compl... | [
{
"code": null,
"e": 698,
"s": 171,
"text": "We are to going to be using PyTorch in many of the posts in this series, so the reader need to make sure that she/he is familiar with it. This post will introduce the reader to the basics features of PyTorch which enables us to implement Deep Learning mod... |
How do you split a list into evenly sized chunks in Python? | The easiest way to split list into equal sized chunks is to use a slice operator successively and shifting initial and final position by a fixed number.
In following example, a list with 12 elements is present. We split it into 3 lists each of length 4
l=[10,20,30,40,50,60,70,80,90,100,110,120]
x=0
y=12
for i in range(... | [
{
"code": null,
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"text": "The easiest way to split list into equal sized chunks is to use a slice operator successively and shifting initial and final position by a fixed number."
},
{
"code": null,
"e": 1315,
"s": 1215,
"text": "In following example, a list ... |
Flask - Quick Guide | Web Application Framework or simply Web Framework represents a collection of libraries and modules that enables a web application developer to write applications without having to bother about low-level details such as protocols, thread management etc.
Flask is a web application framework written in Python. It is devel... | [
{
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"text": "Web Application Framework or simply Web Framework represents a collection of libraries and modules that enables a web application developer to write applications without having to bother about low-level details such as protocols, thread management etc."... |
Auto Grow a Textarea with JavaScript in CSS | Using JavaScript, we can set our Textarea element to automatically grow with its content
The following examples illustrate how we can achieve the above scenario.
Live Demo
<!DOCTYPE html>
<html>
<head>
<style>
* {
margin: 3%;
color: navy;
font-size: 1.2em;
}
#ta {
padding: 2%;
resize: none;
width: 33... | [
{
"code": null,
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"text": "Using JavaScript, we can set our Textarea element to automatically grow with its content"
},
{
"code": null,
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"text": "The following examples illustrate how we can achieve the above scenario."
},
{
"code"... |
Pairs with specific difference | Practice | GeeksforGeeks | Given an array of integers, arr[] and a number, K.You can pair two numbers of the array if the difference between them is strictly less than K. The task is to find the maximum possible sum of such disjoint pairs (i.e., each element of the array can be used at most once). The Sum of P pairs is the sum of all 2P elements... | [
{
"code": null,
"e": 569,
"s": 238,
"text": "Given an array of integers, arr[] and a number, K.You can pair two numbers of the array if the difference between them is strictly less than K. The task is to find the maximum possible sum of such disjoint pairs (i.e., each element of the array can be use... |
Dart - Recursion - GeeksforGeeks | 12 Mar, 2021
Recursion in any programming language means a function making a call to itself. It is used to solve large complex problems by breaking them into smaller subproblems. Dart also implements recursion similarly.
In a recursive function, the function calls itself repeatedly until a base condition is reached. Th... | [
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{
"code": null,
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"text": "Recursion in any programming language means a function making a call to itself. It is used to solve large complex problems by breaking them into smaller subproblem... |
Rust - Functions | Functions are the building blocks of readable, maintainable, and reusable code. A function is a set of statements to perform a specific task. Functions organize the program into logical blocks of code. Once defined, functions may be called to access code. This makes the code reusable. Moreover, functions make it easy t... | [
{
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"text": "Functions are the building blocks of readable, maintainable, and reusable code. A function is a set of statements to perform a specific task. Functions organize the program into logical blocks of code. Once defined, functions may be called to access cod... |
Forward and Inverse Fourier Transform of an Image in MATLAB - GeeksforGeeks | 28 Jan, 2022
In this article, we shall apply Fourier Transform on images. Fourier Transform is a mathematical technique that helps to transform Time Domain function x(t) to Frequency Domain function X(ω). In this article, we will see how to find Fourier Transform in MATLAB.
Linearity: The addition of two functions corr... | [
{
"code": null,
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"text": "\n28 Jan, 2022"
},
{
"code": null,
"e": 24934,
"s": 24672,
"text": "In this article, we shall apply Fourier Transform on images. Fourier Transform is a mathematical technique that helps to transform Time Domain function x(t) to Fre... |
Neo4j - Substring Function | It takes a string as an input and two indexes: one is the start of the index and another is the end of the index and returns a substring from Start Index to End Index-1. All CQL Functions should use "( )" brackets.
Following is the syntax of the function SUBSTRING() in Neo4j.
LOWER (<input-string>)
Following is a sam... | [
{
"code": null,
"e": 2554,
"s": 2339,
"text": "It takes a string as an input and two indexes: one is the start of the index and another is the end of the index and returns a substring from Start Index to End Index-1. All CQL Functions should use \"( )\" brackets."
},
{
"code": null,
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A static initialization block in Java | Instance variables are initialized using initialization blocks. However, the static initialization blocks can only initialize the static instance variables. These blocks are only executed once when the class is loaded. There can be multiple static initialization blocks in a class that is called in the order they appear... | [
{
"code": null,
"e": 1399,
"s": 1062,
"text": "Instance variables are initialized using initialization blocks. However, the static initialization blocks can only initialize the static instance variables. These blocks are only executed once when the class is loaded. There can be multiple static initi... |
Find the node with minimum value in a Binary Search Tree using recursion - GeeksforGeeks | 23 Jun, 2021
Given a Binary Search Tree, the task is to find the node with minimum value.
Examples:
Input:
Output: 4
Approach: Just traverse the node from root to left recursively until left is NULL. The node whose left is NULL is the node with the minimum value.
Below is the implementation of the above approach:... | [
{
"code": null,
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"text": "\n23 Jun, 2021"
},
{
"code": null,
"e": 26657,
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"text": "Given a Binary Search Tree, the task is to find the node with minimum value."
},
{
"code": null,
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"text": "Examples: "
... |
PyQt5 – How to add Separator in Status Bar ? - GeeksforGeeks | 22 Apr, 2020
In this article we will see how to add separator in status bar. separator are basically just vertical lines which are used to distinguish items.
Below is the difference between the statusbar with separator and without separator.
The main concept is that we will add a widget between two labels which will be... | [
{
"code": null,
"e": 24354,
"s": 24326,
"text": "\n22 Apr, 2020"
},
{
"code": null,
"e": 24499,
"s": 24354,
"text": "In this article we will see how to add separator in status bar. separator are basically just vertical lines which are used to distinguish items."
},
{
"cod... |
set find() function in C++ STL - GeeksforGeeks | 24 Dec, 2021
The set::find is a built-in function in C++ STL which returns an iterator to the element which is searched in the set container. If the element is not found, then the iterator points to the position just after the last element in the set.
Syntax:
set_name.find(element)
Parameters: The function accep... | [
{
"code": null,
"e": 25860,
"s": 25832,
"text": "\n24 Dec, 2021"
},
{
"code": null,
"e": 26100,
"s": 25860,
"text": "The set::find is a built-in function in C++ STL which returns an iterator to the element which is searched in the set container. If the element is not found, then... |
CSS | * Selector - GeeksforGeeks | 10 Jul, 2021
The * selector in CSS is used to select all the elements in a HTML document. It also selects all elements which are inside under another element. It is also called universal selector.
Syntax:
* {
// CSS property
}
Example 1:
HTML
<!DOCTYPE html><html> <head> <title>* Selector</title> ... | [
{
"code": null,
"e": 27966,
"s": 27938,
"text": "\n10 Jul, 2021"
},
{
"code": null,
"e": 28150,
"s": 27966,
"text": "The * selector in CSS is used to select all the elements in a HTML document. It also selects all elements which are inside under another element. It is also called... |
Find position of a Matched Pattern in a String in R Programming – grep() Function - GeeksforGeeks | 12 Apr, 2021
grep() function in R Language is used to search for matches of a pattern within each element of the given string.
Syntax: grep(pattern, x, ignore.case=TRUE/FALSE, value=TRUE/FALSE)Parameters: pattern: Specified pattern which is going to be matched with given elements of the string. x: Specified string vec... | [
{
"code": null,
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"text": "\n12 Apr, 2021"
},
{
"code": null,
"e": 24966,
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"text": "grep() function in R Language is used to search for matches of a pattern within each element of the given string. "
},
{
"code": null,
"e": 25318,
... |
Moving balls in Tkinter Canvas | Tkinter is a standard Python library which is used to create GUI-based applications. To create a simple moving ball application, we can use the Canvas widget which allows the user to add images, draw shapes, and animating objects. The application has the following components,
A Canvas widget to draw the oval or ball in... | [
{
"code": null,
"e": 1339,
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"text": "Tkinter is a standard Python library which is used to create GUI-based applications. To create a simple moving ball application, we can use the Canvas widget which allows the user to add images, draw shapes, and animating objects. The application has th... |
Explicitly Defaulted and Deleted Functions in C++ 11 - GeeksforGeeks | 06 Jun, 2021
What is a Defaulted Function? Explicitly defaulted function declaration is a new form of function declaration that is introduced into the C++11 standard which allows you to append the ‘=default;’ specifier to the end of a function declaration to declare that function as an explicitly defaulted function. Th... | [
{
"code": null,
"e": 24207,
"s": 24179,
"text": "\n06 Jun, 2021"
},
{
"code": null,
"e": 24918,
"s": 24207,
"text": "What is a Defaulted Function? Explicitly defaulted function declaration is a new form of function declaration that is introduced into the C++11 standard which allo... |
Check sum of Covered and Uncovered nodes of Binary Tree - GeeksforGeeks | 02 Mar, 2022
Given a binary tree, you need to check whether sum of all covered elements is equal to sum of all uncovered elements or not. In a binary tree, a node is called Uncovered if it appears either on left boundary or right boundary. Rest of the nodes are called covered.
For example, consider below binary tree
I... | [
{
"code": null,
"e": 25326,
"s": 25298,
"text": "\n02 Mar, 2022"
},
{
"code": null,
"e": 25592,
"s": 25326,
"text": "Given a binary tree, you need to check whether sum of all covered elements is equal to sum of all uncovered elements or not. In a binary tree, a node is called Unc... |
How to get input value search box and enter it in AngularJS component using Enter key ? - GeeksforGeeks | 12 Mar, 2021
To implement a search component in AngularJS which calls the function whenever the user presses the enter key(keyCode = 13) and then does some relatable task from the user input. This can be achieved easily using the keyup event.
Here for styling purpose, bootstrap and font awesome are being used.
We need ... | [
{
"code": null,
"e": 25109,
"s": 25081,
"text": "\n12 Mar, 2021"
},
{
"code": null,
"e": 25339,
"s": 25109,
"text": "To implement a search component in AngularJS which calls the function whenever the user presses the enter key(keyCode = 13) and then does some relatable task from ... |
How to calculate power of three using C#? | For power of 3, se the power as 3 and apply a recursive code like the following snippet −
if (p!=0) {
return (n * power(n, p - 1));
}
Let’s say the number is 5, then the iterations would be −
power(5, 3 - 1)); // 25
power (5,2-1): // 5
The above would return5*25 i.e 125 as shown below −
Live Demo
using System;
using S... | [
{
"code": null,
"e": 1152,
"s": 1062,
"text": "For power of 3, se the power as 3 and apply a recursive code like the following snippet −"
},
{
"code": null,
"e": 1196,
"s": 1152,
"text": "if (p!=0) {\nreturn (n * power(n, p - 1));\n}"
},
{
"code": null,
"e": 1254,
... |
Why would we call cin.clear() and cin.ignore() after reading input in C++? | In C++ the cin is used to take input from user. Sometimes for some reasons some error flags are set. In that time the cin does not take any input. Sometimes it takes some other characters. So if we clear the cin, then the error flags are reset. Then we can use getline(), get() etc. functions.
The ignore() function is a... | [
{
"code": null,
"e": 1356,
"s": 1062,
"text": "In C++ the cin is used to take input from user. Sometimes for some reasons some error flags are set. In that time the cin does not take any input. Sometimes it takes some other characters. So if we clear the cin, then the error flags are reset. Then we ... |
Reshape R dataframes wide to long | Towards Data Science | How do you reshape a dataframe from wide to long form in R? How does the melt() function reshape dataframes in R? This tutorial will walk you through reshaping dataframes using the melt function in R.
If you’re reshaping dataframes or arrays in Python, check out my tutorials below.
towardsdatascience.com
towardsdatasci... | [
{
"code": null,
"e": 373,
"s": 172,
"text": "How do you reshape a dataframe from wide to long form in R? How does the melt() function reshape dataframes in R? This tutorial will walk you through reshaping dataframes using the melt function in R."
},
{
"code": null,
"e": 455,
"s": 373... |
How to Auto-Adjust the Width of Excel Columns with Pandas ExcelWriter | Towards Data Science | One of the most frustrating things you possibly need to deal with is when generating an Excel file using Python, that contains numerous columns you are unable to read due to the short width of the columns. Ideally, you should deliver readable spreadsheets where all the columns are properly formatted so that they are re... | [
{
"code": null,
"e": 375,
"s": 47,
"text": "One of the most frustrating things you possibly need to deal with is when generating an Excel file using Python, that contains numerous columns you are unable to read due to the short width of the columns. Ideally, you should deliver readable spreadsheets ... |
Understanding the t-distribution in R - GeeksforGeeks | 24 Feb, 2021
The t-distribution is a type of probability distribution that arises while sampling a normally distributed population when the sample size is small and the standard deviation of the population is unknown. It is also called the Student’s t-distribution. It is approximately a bell curve, that is, it is appro... | [
{
"code": null,
"e": 26597,
"s": 26569,
"text": "\n24 Feb, 2021"
},
{
"code": null,
"e": 27156,
"s": 26597,
"text": "The t-distribution is a type of probability distribution that arises while sampling a normally distributed population when the sample size is small and the standar... |
Android Menus - GeeksforGeeks | 21 Feb, 2022
In android, Menu is an important part of UI component which is used to provide some common functionality around the application. With the help of menu user can experience smooth and consistent experience throughout the application.
In order to use menu, we should define it in separate XML file and use that... | [
{
"code": null,
"e": 25919,
"s": 25891,
"text": "\n21 Feb, 2022"
},
{
"code": null,
"e": 26151,
"s": 25919,
"text": "In android, Menu is an important part of UI component which is used to provide some common functionality around the application. With the help of menu user can exp... |
Analyzing London Crimes Data in R | by Hamza Rafiq | Towards Data Science | I was playing around with this dataset on crimes in London. The analysis and visualizations went a lot better than I expected so I thought I might as well write an article about it. I got this data while I was experimenting with bigquery but you can also download it from here on Kaggle. Let's begin by loading the libra... | [
{
"code": null,
"e": 510,
"s": 171,
"text": "I was playing around with this dataset on crimes in London. The analysis and visualizations went a lot better than I expected so I thought I might as well write an article about it. I got this data while I was experimenting with bigquery but you can also ... |
Find Maximum Shortest Distance in Each Component of a Graph - GeeksforGeeks | 18 Dec, 2021
Given an adjacency matrix graph[][] of a weighted graph consisting of N nodes and positive weights, the task for each connected component of the graph is to find the maximum among all possible shortest distances between every pair of nodes.
Examples:
Input:
Output:
8 0 11
Explanation: There are three comp... | [
{
"code": null,
"e": 24307,
"s": 24279,
"text": "\n18 Dec, 2021"
},
{
"code": null,
"e": 24548,
"s": 24307,
"text": "Given an adjacency matrix graph[][] of a weighted graph consisting of N nodes and positive weights, the task for each connected component of the graph is to find t... |
Cypress - Architecture and Environment Setup | Cypress architecture is illustrated in the below diagram −
The source of the above diagram is https://www.tutorialspoint.com/cypress-architecturetest-automation
Automation tools like Selenium work by running outside the browser. However, the Cypress has a different architecture. It runs within the browser. Cypress is b... | [
{
"code": null,
"e": 2556,
"s": 2497,
"text": "Cypress architecture is illustrated in the below diagram −"
},
{
"code": null,
"e": 2658,
"s": 2556,
"text": "The source of the above diagram is https://www.tutorialspoint.com/cypress-architecturetest-automation"
},
{
"code":... |
Find smallest number with given number of digits and sum of digits in C++ | In this problem, we are given two values that are the sum (denoting the sum
of digits) and digit (denoting the number of digits). Our task is to find the
smallest number with a given number of digits and sum of digits.
Let’s take an example to understand the problem,
sum = 15, dgiti = 2
69
All 2 digits numbers with sum... | [
{
"code": null,
"e": 1281,
"s": 1062,
"text": "In this problem, we are given two values that are the sum (denoting the sum\nof digits) and digit (denoting the number of digits). Our task is to find the\nsmallest number with a given number of digits and sum of digits."
},
{
"code": null,
... |
Copy from clipboard using Python and Tkinter | To copy from clipboard, we can use the clipboard_get() method of Tkinter. Let's take an example and see how to get the data from the clipboard and display it on a Tkinter window.
Import the tkinter library and create an instance of tkinter frame.
Import the tkinter library and create an instance of tkinter frame.
Set t... | [
{
"code": null,
"e": 1241,
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"text": "To copy from clipboard, we can use the clipboard_get() method of Tkinter. Let's take an example and see how to get the data from the clipboard and display it on a Tkinter window."
},
{
"code": null,
"e": 1309,
"s": 1241,
"text": "Imp... |
Char.IsDigit() Method in C# | The Char.IsDigit() method in C# indicates whether the specified Unicode character is categorized as a decimal digit.
Following is the syntax −
public static bool IsDigit (char ch);
Above, the parameter ch is the Unicode character to evaluate.
Let us now see an example to implement the Char.IsDigit() method −
using Syst... | [
{
"code": null,
"e": 1179,
"s": 1062,
"text": "The Char.IsDigit() method in C# indicates whether the specified Unicode character is categorized as a decimal digit."
},
{
"code": null,
"e": 1205,
"s": 1179,
"text": "Following is the syntax −"
},
{
"code": null,
"e": 12... |
Java - String charAt() Method | This method returns the character located at the String's specified index. The string indexes start from zero.
Here is the syntax of this method −
public char charAt(int index)
Here is the detail of parameters −
index − Index of the character to be returned.
index − Index of the character to be returned.
This method r... | [
{
"code": null,
"e": 2488,
"s": 2377,
"text": "This method returns the character located at the String's specified index. The string indexes start from zero."
},
{
"code": null,
"e": 2524,
"s": 2488,
"text": "Here is the syntax of this method −"
},
{
"code": null,
"e"... |
MongoDB - GridFS | GridFS is the MongoDB specification for storing and retrieving large files such as images, audio files, video files, etc. It is kind of a file system to store files but its data is stored within MongoDB collections. GridFS has the capability to store files even greater than its document size limit of 16MB.
GridFS divid... | [
{
"code": null,
"e": 2861,
"s": 2553,
"text": "GridFS is the MongoDB specification for storing and retrieving large files such as images, audio files, video files, etc. It is kind of a file system to store files but its data is stored within MongoDB collections. GridFS has the capability to store fi... |
Common Divisors of Two Numbers - GeeksforGeeks | 29 Jun, 2021
Given two integer numbers, the task is to find count of all common divisors of given numbers?
Examples :
Input : a = 12, b = 24
Output: 6
// all common divisors are 1, 2, 3,
// 4, 6 and 12
Input : a = 3, b = 17
Output: 1
// all common divisors are 1
Input : a = 20, b = 36
Output: 3
// all common diviso... | [
{
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"e": 24622,
"s": 24594,
"text": "\n29 Jun, 2021"
},
{
"code": null,
"e": 24716,
"s": 24622,
"text": "Given two integer numbers, the task is to find count of all common divisors of given numbers?"
},
{
"code": null,
"e": 24728,
"s": 24716,
"text... |
Bootstrap Estimates and Experimentation | by Charles Copley | Towards Data Science | Many digital experiments carried out these days can be happily analyzed using frequentist statistical methods since we expect the data to be normally distributed. However, there are certain metrics that are not so easy. Take, for example, an experiment designed to increase tax collections, or to pay an invoice. If all ... | [
{
"code": null,
"e": 907,
"s": 172,
"text": "Many digital experiments carried out these days can be happily analyzed using frequentist statistical methods since we expect the data to be normally distributed. However, there are certain metrics that are not so easy. Take, for example, an experiment de... |
How to deploy a MongoDB Replica Set using Docker | by Cristian Ramirez | Towards Data Science | I have written a new article about how to deploy a mongodb cluster using a DevOps fashion Style, in this article i am using Terraform, Ansible, Packer and more cool technologies, i highly encourage you to read it.
medium.com
This article is going to be a walk-through in how to set up a MongoDB replica set with authenti... | [
{
"code": null,
"e": 386,
"s": 172,
"text": "I have written a new article about how to deploy a mongodb cluster using a DevOps fashion Style, in this article i am using Terraform, Ansible, Packer and more cool technologies, i highly encourage you to read it."
},
{
"code": null,
"e": 397,... |
CSS | clear Property - GeeksforGeeks | 08 Aug, 2019
The clear property is used to specify that which side of floating elements are not allowed to float. It sets or returns the position of the element in relation to floating objects. If the element can fit horizontally in the space next to another element which is floated, it will.
Syntax:
clear: none|left|r... | [
{
"code": null,
"e": 23684,
"s": 23656,
"text": "\n08 Aug, 2019"
},
{
"code": null,
"e": 23965,
"s": 23684,
"text": "The clear property is used to specify that which side of floating elements are not allowed to float. It sets or returns the position of the element in relation to ... |
Convert string to datetime in Python with timezone - GeeksforGeeks | 14 Sep, 2021
Prerequisite: Datetime module
In this article, we will learn how to get datetime object from time string using Python.
To convert a time string into datetime object, datetime.strptime() function of datetime module is used. This function returns datetime object.
Syntax : datetime.strptime(date_string, form... | [
{
"code": null,
"e": 24292,
"s": 24264,
"text": "\n14 Sep, 2021"
},
{
"code": null,
"e": 24322,
"s": 24292,
"text": "Prerequisite: Datetime module"
},
{
"code": null,
"e": 24411,
"s": 24322,
"text": "In this article, we will learn how to get datetime object fr... |
Tryit Editor v3.7 | Tryit: Canvas with a text | [] |
Java Examples - Display Time in different Country's format | How to display time in different country's format?
Following example uses Locale class & DateFormat class to display date in different Country's format.
import java.text.DateFormat;
import java.util.*;
public class Main {
public static void main(String[] args) throws Exception {
Date d1 = new Date();
Sy... | [
{
"code": null,
"e": 2119,
"s": 2068,
"text": "How to display time in different country's format?"
},
{
"code": null,
"e": 2221,
"s": 2119,
"text": "Following example uses Locale class & DateFormat class to display date in different Country's format."
},
{
"code": null,
... |
Explain the concept of primary key with an example (DBMS)? | Key is a data item which is used to identify a record or a value used to identify a record in a database is called a key. It helps uniquely to identify an entity from an entity set.
Key allows us to identify a set of attributes that make them sufficient to distinguish entities from each other.
Example
Account number, e... | [
{
"code": null,
"e": 1244,
"s": 1062,
"text": "Key is a data item which is used to identify a record or a value used to identify a record in a database is called a key. It helps uniquely to identify an entity from an entity set."
},
{
"code": null,
"e": 1357,
"s": 1244,
"text": "... |
Different Shells in Linux - GeeksforGeeks | 03 Dec, 2019
SHELL is a program which provides the interface between the user and an operating system. When the user logs in OS starts a shell for user. Kernel controls all essential computer operations, and provides the restriction to hardware access, coordinates all executing utilities, and manages Resources between ... | [
{
"code": null,
"e": 24642,
"s": 24614,
"text": "\n03 Dec, 2019"
},
{
"code": null,
"e": 25032,
"s": 24642,
"text": "SHELL is a program which provides the interface between the user and an operating system. When the user logs in OS starts a shell for user. Kernel controls all ess... |
Convert a Queue to a List in Java | In order to convert a Queue to a List in Java, we can create an LinkedList and pass the Queue as an argument in the parameterized constructor of an ArrayList. This can be done as follows −
Queue q = new LinkedList();
List l = new ArrayList(q);
The quickest way is used to LinkedList in the first place which can be used ... | [
{
"code": null,
"e": 1251,
"s": 1062,
"text": "In order to convert a Queue to a List in Java, we can create an LinkedList and pass the Queue as an argument in the parameterized constructor of an ArrayList. This can be done as follows −"
},
{
"code": null,
"e": 1306,
"s": 1251,
"t... |
How to find duplicates in an array using set() and filter() methods in JavaScript? | To remove duplicates in an array we have many logical methods, but advanced javascript has provided some methods so that the task of removing duplicates has become very simple. Some of those methods are set() and filter(). For better understanding lets' discuss each method individually.
The important use of the set() m... | [
{
"code": null,
"e": 1350,
"s": 1062,
"text": "To remove duplicates in an array we have many logical methods, but advanced javascript has provided some methods so that the task of removing duplicates has become very simple. Some of those methods are set() and filter(). For better understanding lets'... |
Web2py - Access Control | Almost every application needs to be able to authenticate users and set permissions. web2py comes with an extensive and customizable role-based access control mechanism.web2py. It also supports the protocols, such as CAS, OpenID, OAuth 1.0, LDAP, PAM, X509, and many more.
web2py includes a mechanism known as Role Based... | [
{
"code": null,
"e": 2166,
"s": 1893,
"text": "Almost every application needs to be able to authenticate users and set permissions. web2py comes with an extensive and customizable role-based access control mechanism.web2py. It also supports the protocols, such as CAS, OpenID, OAuth 1.0, LDAP, PAM, X... |
AthenaHealth Interview Experience | On-Campus Virtual 2020 - GeeksforGeeks | 15 Sep, 2020
College: M.S Ramaiah Institute of Technology, Bangalore Date: 26th August 2020 and 27th August 2020
Athena Health is a USA based IT company with the vision is to create a thriving ecosystem that delivers accessible, high-quality, and sustainable healthcare for all. The Company has visited our college with... | [
{
"code": null,
"e": 25206,
"s": 25178,
"text": "\n15 Sep, 2020"
},
{
"code": null,
"e": 25307,
"s": 25206,
"text": "College: M.S Ramaiah Institute of Technology, Bangalore Date: 26th August 2020 and 27th August 2020 "
},
{
"code": null,
"e": 25764,
"s": 25307,
... |
Comparator Interface in Java with Examples - GeeksforGeeks | 21 Dec, 2021
A comparator interface is used to order the objects of user-defined classes. A comparator object is capable of comparing two objects of the same class. Following function compare obj1 with obj2.
Syntax:
public int compare(Object obj1, Object obj2):
Suppose we have an Array/ArrayList of our own class type,... | [
{
"code": null,
"e": 28952,
"s": 28924,
"text": "\n21 Dec, 2021"
},
{
"code": null,
"e": 29147,
"s": 28952,
"text": "A comparator interface is used to order the objects of user-defined classes. A comparator object is capable of comparing two objects of the same class. Following f... |
Python - Move a column to the first position in Pandas DataFrame? | Use pop() to pop the column and insert it using the insert() methodi.e. moving a column. At first, create a DataFrame with 3 columns −
dataFrame = pd.DataFrame(
{
"Student": ['Jack', 'Robin', 'Ted', 'Marc', 'Scarlett', 'Kat', 'John'],"Result": ['Pass', 'Fail', 'Pass', 'Fail', 'Pass', 'Pass', 'Pass'],"Roll Numb... | [
{
"code": null,
"e": 1197,
"s": 1062,
"text": "Use pop() to pop the column and insert it using the insert() methodi.e. moving a column. At first, create a DataFrame with 3 columns −"
},
{
"code": null,
"e": 1420,
"s": 1197,
"text": "dataFrame = pd.DataFrame(\n {\n \"Studen... |
How to use shapiro wilk test to check normality of an R data frame column? | To apply shapiro wilk test for normality on vectors, we just simply name the vector inside shapiro.test function but if we want to do the same for an R data frame column then the column will have to specify the column in a proper way. For example, if the data frame name is df and the column name is x then the function ... | [
{
"code": null,
"e": 1415,
"s": 1062,
"text": "To apply shapiro wilk test for normality on vectors, we just simply name the vector inside shapiro.test function but if we want to do the same for an R data frame column then the column will have to specify the column in a proper way. For example, if th... |
Recursively remove all adjacent duplicates | Practice | GeeksforGeeks | Given a string s, remove all its adjacent duplicate characters recursively.
Example 1:
Input:
S = "geeksforgeek"
Output: "gksforgk"
Explanation:
g(ee)ksforg(ee)k -> gksforgk
Example 2:
Input:
S = "abccbccba"
Output: ""
Explanation:
ab(cc)b(cc)ba->abbba->a(bbb)a->aa->(aa)->""(empty string)
Your Task:
You don't nee... | [
{
"code": null,
"e": 315,
"s": 238,
"text": "Given a string s, remove all its adjacent duplicate characters recursively. "
},
{
"code": null,
"e": 326,
"s": 315,
"text": "Example 1:"
},
{
"code": null,
"e": 414,
"s": 326,
"text": "Input:\nS = \"geeksforgeek\"\... |
What does colon ':' operator do in Python? | The : symbol is used for more than one purpose in Python
As slice operator with sequence −
The − operator slices a part from a sequence object such as list, tuple or string. It takes two arguments. First is the index of start of slice and second is index of end of slice. Both operands are optional. If first operand is ... | [
{
"code": null,
"e": 1119,
"s": 1062,
"text": "The : symbol is used for more than one purpose in Python"
},
{
"code": null,
"e": 1153,
"s": 1119,
"text": "As slice operator with sequence −"
},
{
"code": null,
"e": 1463,
"s": 1153,
"text": "The − operator slice... |
Spiral Pattern - GeeksforGeeks | 22 Apr, 2021
Given a number N, the task is to print the following pattern:-
Examples:
Input : N = 4
Output : 4 4 4 4 4 4 4
4 3 3 3 3 3 4
4 3 2 2 2 3 4
4 3 2 1 2 3 4
4 3 2 2 2 3 4
4 3 3 3 3 3 4
4 4 4 4 4 4 4
Input : N = 2
Output : 2 2 2
2 1 2
2 2 ... | [
{
"code": null,
"e": 24531,
"s": 24503,
"text": "\n22 Apr, 2021"
},
{
"code": null,
"e": 24594,
"s": 24531,
"text": "Given a number N, the task is to print the following pattern:-"
},
{
"code": null,
"e": 24605,
"s": 24594,
"text": "Examples: "
},
{
"c... |
7 Ways to Manipulate Pandas Dataframes | by Soner Yıldırım | Towards Data Science | Pandas is a very powerful and versatile Python data analysis library that expedites the data analysis and exploration process. One of the advantages of Pandas is that it provides a variety of functions and methods for data manipulation.
A dataframe is the core data structure of Pandas. In order to master Pandas, you sh... | [
{
"code": null,
"e": 409,
"s": 172,
"text": "Pandas is a very powerful and versatile Python data analysis library that expedites the data analysis and exploration process. One of the advantages of Pandas is that it provides a variety of functions and methods for data manipulation."
},
{
"cod... |
Decoding: State Of The Art Recommender System | by Kb Pachauri | Towards Data Science | “Temporal-Contextual Recommendation in Real-Time” was announced as the best paper in the applied data science track, recently in SIGKDD-2020 which was held virtually between 23–27 Aug 2020. In this blog, I will walk through the key component of the HRNN-meta recommender model which achieves a state of the art performan... | [
{
"code": null,
"e": 633,
"s": 172,
"text": "“Temporal-Contextual Recommendation in Real-Time” was announced as the best paper in the applied data science track, recently in SIGKDD-2020 which was held virtually between 23–27 Aug 2020. In this blog, I will walk through the key component of the HRNN-m... |
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