id int64 0 25.6k | text stringlengths 0 4.59k |
|---|---|
24,700 | data structures using getch()return void insert_val(int valf printf"\nenter the element to be inserted )scanf"% "&val )key val if ht[key=- ht[keyvalelse if key for key ; ; +if ht[ =- ht[ivalbreakfor ; key; +if ht[ =- ht[ivalbreakvoid display(for ( ; ; ++printf"\ % "hti )void search_val(int valflag printf"\nenter the el... |
24,701 | if (flag = for ( ; key; ++if (hti =valflag key ibreakif (flag = found= printf("\ the item searched was found at position % !"key )else key - printf"\nthe item searched was not found in the hash table)void delete_val(search_val()if (found== if key !- printf"\nthe element deleted is % "htkey )htkey - output menu insert s... |
24,702 | data structures using universe of keys (uk actual keys (kfigure null null null null null keys being hashed to chained hash table operations on chained hash table searching for value in chained hash table is as simple as scanning linked list for an entry with the given key insertion operation appends the key to the end ... |
24,703 | cont code to search value /the element is searched in the linked list whose pointer to its head is stored in the location given by (kif search is successfulthe function returns pointer to the node in the linked listotherwise it returns null the worst case running time of the search operation is given as order of size o... |
24,704 | data structures using step key ( mod create linked list for location and store the key value in it as its only node null ( mod null null null null null null null step key ( mod insert at the end of the linked list of location null null null null null key insert at the end of the linked list of location null null null n... |
24,705 | howeverchained hash tables inherit the disadvantages of linked lists firstto store key valuethe space overhead of the next pointer in each entry can be significant secondtraversing linked list has poor cache performancemaking the processor cache ineffective bucket hashing in closed hashingall the records are directly s... |
24,706 | data structures using one of these techniques is caching which saves information in the memorythe other is hashing which makes looking up the file location in the memory much quicker than most other methods hashing technique is used to implement compiler symbol tables in +the compiler uses symbol table to keep record o... |
24,707 | graphics in graphicsa central problem is the storage of objects in scene or view for thiswe organize our data by hashing hashing can be used to make grid of appropriate sizean ordinary vertical-horizontal grid (note that grid is nothing but arrayand there is one-to-one correspondence when we move from array to array so... |
24,708 | data structures using in chainingeach location in hash table stores pointer to linked list that contains all the key values that were hashed to that location while the cost of inserting key in chained hash table is ( )the cost for deleting and searching value is given as ( )where is the number of elements in the list o... |
24,709 | files and their organization learning objective in this we will discuss the basic attributes of file and the different ways in which files can be organized in the secondary memory thenwe will learn about different indexing strategies that allow efficient and faster access to these files introduction nowadaysmost organi... |
24,710 | data field is an elementary unit that stores single fact data field is usually characterized by its type and size for examplestudent' name is data field that stores the name of students this field is of type character and its size can be set to maximum of or characters depending on the requirement record is collection ... |
24,711 | file access method it indicates whether the records in file can be accessed sequentially or randomly in sequential access moderecords are read one by one that isif records of students are stored in the student filethen to read the record of th studentyou have to go through the record of the first students howeverin ran... |
24,712 | data structures using thereforea binary file is not readable by humans and it is up to the program reading the file to make sense of the data that is stored in the binary file and convert it into something meaningful ( fixed length of recordbinary files contain formatting information that only certain applications or p... |
24,713 | the other handfile reorganization may involve changing the entire organization of the file we will discuss file organization in detail in the next section file organization we know that file is collection of related records the main issue in file management is the way in which the records are organized inside the file ... |
24,714 | data structures using table sequential file organization features advantages disadvantages records are written in the order in which they are entered records are read and written sequentially deletion or updation of one or more records calls for replacing the original file with new file that contains the desired change... |
24,715 | as ( - table summarizes the featuresadvantagesand disadvantages of relative file organization table relative file organization features advantages disadvantages provides an effective way to access individual records the record number represents the location of the record relative to the beginning of the file records in... |
24,716 | the data indexed sequential files can be stored only on devices that support random accessfor examplemagnetic disks for exampletake an example of college where the details of students are stored in an indexed sequential file this file can be accessed in two wayssequentially--to print the aggregate marks obtained by eac... |
24,717 | record forsayroll number then the student' roll number is the primary index indexed sequential files are common example where primary index is associated with the file secondary index an index whose search key specifies an order different from the sequential order of the file is called as the secondary index for exampl... |
24,718 | data structures using each cylinder will have an entry corresponding to the largest key value into that cylinder if the disk has usable surfacesthen each of the surface indices will have entries thereforethe ith entry in the surface index for cylinder is the largest key value on the jth track of the ith surface henceth... |
24,719 | each entry in the index table occupies bytesthen we need an index table of bytes bytes finding such big space consecutively is not always easy soa better scheme is to index the index table figure shows two-level multi-indexing we can continue further by having three-level indexing and so on but practicallywe use two-le... |
24,720 | data structures using thereforethe inverted file system consists of an index file in addition to document file (also known as text fileit is this index file that contains all the keywords which may be used as search terms for each keywordan address or reference to each location in the document where that word occurs is... |
24,721 | it forms tree structure with the root at the top the index consists of -tree (balanced treestructure based on the values of the indexed column in this examplethe indexed column is name and the -tree is created using all the existing names that are the values of the indexed column the upper blocks of the tree contain in... |
24,722 | data structures using search to search record having the key value kiuse (kito compute the address of the bucket where the record is stored the bucket may contain one or several recordsso check for every record in the bucket (by comparing ki with the key of every recordto finally retrieve the desired record with the gi... |
24,723 | inverted files are frequently used indexing technique in document retrieval systems for large textual databases an inverted file reorganizes the structure of an existing data file in order to provide fast access to all records having one field falling within set limits majority of the database management systems use -t... |
24,724 | data structures using is pointer that points to the position at which next read/write operation will be performed indicates whether the file is text file or binary file index table stores and of the record in the file in sequentially ordered file the index whose search key specifies the sequential order of the file is ... |
24,725 | memory allocation in programs supports three kinds of memory allocation through the variables in programsstatic allocation when we declare static or global variablestatic allocation is done for the variable each static or global variable is allocated fixed size of memory space the number of bytes reserved for the varia... |
24,726 | apart from the stackwe also have memory pool known as heap heap memory is unused memory allocated to the program and available to be assigned during its execution when we dynamically allocate memory for variablesheap acts as memory pool from which memory is allocated to those variables howeverthis is just conceptual vi... |
24,727 | of memory of specified size and returns pointer of type void this means that we can assign it to any type of pointer the general syntax of malloc(is ptr =(cast-type*)malloc(byte-size)where ptr is pointer of type cast-type malloc(returns pointer (of cast typeto an area of memory with size byte-size for examplearr=(int*)... |
24,728 | data structures using for( ; ; ++printf("\ enter the value % of the array" )scanf("% "&arr[ ])printf("\ the array contains \ ")for( ; ; ++printf("% "arr[ ])return now let us also see how we can allocate memory using the calloc function the calloc(function accepts two parameters--num and sizewhere num is the number of e... |
24,729 | ptr realloc(ptr,newsize)the function realloc(allocates new memory space of size specified by newsize to the pointer variable ptr it returns pointer to the first byte of the memory block the allocated new block may be or may not be at the same region thuswe see that realloc(takes two arguments the first is the pointer r... |
24,730 | data structures using int main(int **arrijrowscolsprintf("\ enter the number of rows and columns in the array")scanf("% % "rowscols)arr (int **)malloc(rows sizeof(int *))if(arr =nullprintf("\ memory could not be allocated")exit(- )for( = <rowsi++arr[ (int *)malloc(cols sizeof(int))if(arr[ =nullprintf("\ memory allocati... |
24,731 | once the memory is allocated for the two-dimensional arraywe can use subscripts to access its elements when we writearr[ ][ ]it means we are looking for the ith pointer pointed to by arrand then for the jth int pointed to by that inner pointer when we have to pass such an array to functionthen the prototype of the func... |
24,732 | garbage collection garbage collection is dynamic approach used for automatic memory management to reduce the memory leak problems the garbage collection process identifies unused memory blocks and reallocates that storage for reuse garbage collection is implemented using the following approachesmark-and-sweep in this a... |
24,733 | disadvantages of garbage collection the typical disadvantages of garbage collection process includegarbage collection consumes computing resources to decide which piece of memory must be freed this information may already be available with the programmer the time at which the garbage collection process will be executed... |
24,734 | backtracking backtracking is general algorithm that finds all or some solutions to any computational problem that incrementally builds candidates to the solutions at each stepwhile the valid candidates to the solution are extendedthe other candidates are discarded that iseach partial candidate is immediately abandoned ... |
24,735 | look at the search tree given below root solution solution (badsolution (badsolution solution (badsolution (goodstep start with the root node the two available options are--solution and solution select solution step at solution there are again two options--solution and solution select solution step since solution is no... |
24,736 | josephus problem in real-world applicationsespecially in the operating systemmultiple activities have to be performed the biggest issue is not just performing these activities but also completing them in minimum time the johnson' algorithm is used in such applications where an optimal order of execution of different ac... |
24,737 | head tail tail tail mintime location sort the table using the mintime field task time to perform time to perform head tail tail tail tail tail there is an alternative implementation strategy which states that if location has the value tail then the task is added at the front of once all the tasks are assignedhead and t... |
24,738 | file handling in write program to store records of an employee in employee file the data must be stored using binary file #include #include int main(typedef struct employee int emp_codechar name[ ]}file *fpstruct employee [ ]int ifp fopen("employee txt""wb")if(fp==nullprintf("\ error opening file")exit( )printf("\ ente... |
24,739 | int main(typedef struct employee int emp_codechar name[ ]}file *fpstruct employee eint iclrscr()fp fopen("employee txt""rb")if(fp==nullprintf("\ error opening file")exit( )printf("\ the details of the employees are ")while( fread(&esizeof( ) fp)if(feof(fp)breakprintf("\ \ employee code% " emp_code)printf("\ \ name% " n... |
24,740 | address calculation sort write program to sort elements of an array using address calculation sort #include #include #define max struct node int datastruct node *next}*nodes[ ]={null}struct node *insert(struct node *startint numstruct node *ptr,*new_nodeptr=startnew_node (struct node*)malloc(sizeof(struct node))new_nod... |
24,741 | nodes[pos]=insert(nodes[pos],arr[ ])for( = ; < ; ++while(nodes[ ]!=nullarr[ ++]=nodes[ ]->datanodes[ ]=nodes[ ]->nextprintf("\nsorted output is")for( = ; < ; ++printf("% \ ",arr[ ])getch()void main(int arr[max], ,nprintf("\ enter the number of elements ")scanf("% ",& )printf("\ enter the elements ")for( = ; < ; ++scanf... |
24,742 | answers multiple-choice questions ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( false false true true false false false true true false true false true false true true true true or false false false false true true true false true fill in the blanks dennis ritchie operating system typecasting closing bracket sizeof arguments/parameter... |
24,743 | fill in the blanks data structures functions arrays data type root null considered apart from the detailed specifications or implementation input size amortized case index or subscript top peep or peek an attempt is made to insert an element in an arraystack or queue that is already full queue rearfront linear data str... |
24,744 | data structures using multiple-choice questions ( ( ( ( ( ( ( true true true true true true false true true false true or false false false false false fill in the blanks user defined structure declaration structure name typedef zero null character dot operator nested structure self-referential we declare variable of s... |
24,745 | multiple-choice questions ( ( ( ( ( false true false true or false false true false true true fill in the blanks rear input restricted dequeue priority queues dequeue ( circular array or circular doubly linked list queues multiple-choice questions ( ( ( ( ( ( true false true false true or false true false true true fil... |
24,746 | data structures using multiple-choice questions ( ( ( ( ( false false false true or false true false true false true true fill in the blanks and - tree and - (log / multiple-choice questions ( ( ( ( ( ( ( true false true false false false true true or false true false false true fill in the blanks priority queues parti... |
24,747 | multiple-choice questions ( ( ( ( ( ( ( ( ( ( ( false true false true true false true true or false false false false true fill in the blanks sorted array ( the process of arranging values in predetermined order merge sort heap sortquick sort bubble sort ( ( log ( pivot element external sorting merge sortquick sort ( l... |
24,748 | index terms links - tree abstract data type adjacency matrix algorithms efficiency control structures time and space complexity amortized running time ancestor node arguments arithmetic operators array assigning values calculating the length declaration initializing inputting values multi-dimensional operations of stru... |
24,749 | links array (cont structures two-dimensional union average-case running time avl tree balanced tree operations basic data types best-case running time bi-connected components big- notation binary file binary heap applications deleting inserting binary search binary search tree operations binary tree huffman' tree in-or... |
24,750 | links bit matrix bitwise operators bottom-up approach breadth-first search break statement tree applications deleting inserting searching btree deleting inserting call by reference circular doubly linked list deleting node inserting new node circular linked list circular queue collision bucket hashing chaining double h... |
24,751 | links comparison of sorting algorithms complete binary tree conditional operator continue statement copies critical node data field data management data structure linear and non-linear structures primitive and non-primitive data type decision control statements if statement if-else-if statement if-else statement if sta... |
24,752 | links doubly linked list deleting node inserting new node edges equality operators expression trees extended binary trees external nodes external sorting fibonacci heap operations structure fifo file attributes operations organization indexed sequential relative file organization sequential organization function call c... |
24,753 | links functions (cont passing arrays passing parameters self-referential structures structures general trees generic pointers graph adjacency list adjacency matrix adjacency multi-list applications breadth-first search complete connected depth-first search directed in-degree out-degree regular representation simple dir... |
24,754 | links hash function (cont mid-square method multiplication method properties hashing applications hash table header linked list height/depth huffman' tree identifiers if-else-if statement if-else statement if statement in-degree index indexing -tree index cylinder surface dense and sparse dense index hashed indices inv... |
24,755 | links inserting internal nodes iterative statements do-while loop for loop while loop keywords kruskal' algorithm leaf node left successor linear logarithmic loop linear loops linear search linked list applications circular circular doubly de-allocation deleting node doubly header memory allocation multi-linked lists s... |
24,756 | links linked stack operations pop operation push operation little omega notation ( little notation ll rotation logarithmic loops logical operators loop linear logarithmic nested lr and rl rotations lr rotation merging minimum spanning forest modularization modules multi-graph multiple stacks -way search trees neighbour... |
24,757 | links operation arrays binary search deletion insertion replacement linear search merging searching traversal operations on stack peep pop push operators assignment bitwise equality comma conditional logical precedence chart relational sizeof unary out-degree path peep operation pointer to pointers this page has been r... |
24,758 | links pointers arrays generic pointers null pointers pointer arithmetic strings polynomial representation pop operation primary key printf( priority queue array representation deletion implementation insertion linked representation programming language push operation quadratic loop queue applications array representati... |
24,759 | programming using turbo +earlier best-selling titles include assembly language primer for the ibm pc and xt and (back at the beginning of the computer revolutionsoul of cp/ acknowledgments my gratitude for the following people (and many otherscannot be fully expressed in this short acknowledgment as alwaysmitch waite h... |
24,760 | this introduction tells you briefly what this book is about why it' different who might want to read it what you need to know before you read it the software and equipment you need to use it how this book is organized what this book is about this book is about data structures and algorithms as used in computer programm... |
24,761 | typical computer science textbooks are full of theorymathematical formulasand abstruse examples of computer code this bookon the other handconcentrates on simple explanations of techniques that can be applied to real-world problems we avoid complex proofs and heavy math there are lots of figures to augment the text man... |
24,762 | if you aren' familiar with oop it' not that hard to understandespecially in pointer-free environment such as java we'll explain the basics of oop in who this book is for this book can be used as text in data structures and algorithms coursetypically taught in the second year of computer science curriculum howeverit is ... |
24,763 | abstract data types (adts)the stackqueueand priority queue these structures reappear later in the bookembedded in various algorithms each is demonstrated by workshop applet the concept of adts is discussed "linked lists,introduces linked listsincluding doubly linked lists and doubleended lists the use of references as ... |
24,764 | list overview arrays simple sorting overview overview as you start this bookyou may have some questionswhat are data structures and algorithmswhat good will it do me to know about themwhy can' just use arrays and for loops to handle my datawhen does it make sense to apply what learn herethis attempts to answer these qu... |
24,765 | briefly explain enough about oop to get you started finallyfor +programmers who don' know javawe'll point out some of the differences between these languages overview of data structures another way to look at data structures is to focus on their strengths and weaknesses in this section we'll provide an overviewin the f... |
24,766 | data typesor adts we'll describe what this means in "linked lists "overview of algorithms many of the algorithms we'll discuss apply directly to specific data structures for most data structuresyou need to know how to insert new data item search for specified item delete specified item you may also need to know how to ... |
24,767 | particular kind of data figure shows the index line field as holding person' name more sophisticated database programs use records with more fields than cardfile has figure shows such recordwhere each line represents distinct field in java programrecords are usually represented by objects of an appropriate class (in cr... |
24,768 | into an object-oriented java programmerbut it should make it possible for you to follow the example programs if after reading this section and examining some of the sample code in the following you still find the whole oop business as alien as quantum physicsthen you may need more thorough exposure to oop see the readi... |
24,769 | functions and variables thermostat objectfor examplewould contain not only furnace_on(and furnace_off(functionsbut also currenttemp and desiredtemp incidentallybefore going further we should note that in javafunctions are called methods and variables are called fields this new entitythe objectsolves several problems si... |
24,770 | what' referencewe'll discuss references in more detail later in the meantimethink of it as name for an object (it' actually the object' addressbut you don' need to know that here' how we would create two references to type thermostatcreate two new thermostat objectsand store references to them in these variablesthermos... |
24,771 | /to run this programc>java bankapp import java io */for / ///////////////////////////////////////////////////////////////class bankaccount private double balance/account balance public bankaccount(double openingbalance/constructor balance openingbalancepublic void deposit(double amountbalance balance amountpublic void ... |
24,772 | before transactionsbalance= after transactionsbalance= there are two classes in bank java the first onebankaccountcontains the fields and methods for our bank account we'll examine it in detail in moment the second classbankappplays special role the bankapp class to execute the program from dos boxyou type java bankapp... |
24,773 | constructor in this programyou would have needed an additional call to deposit(to put the opening balance in the account public and private notice the keywords public and private in the bankaccount class these keywords are access modifiers and determine what methods can access method or field the balance field is prece... |
24,774 | algorithms with on software engineering we don' follow that approachbut let' briefly examine software engineering and see how it fits into the topics we discuss in this book software engineering is the study of how to create large and complex computer programsinvolving many programmers it focuses on the overall design ... |
24,775 | actuallybc won' hold reference if it has not been assigned an object at some prior point in the program before being assigned an objectit holds reference to special object called null in the same wayintvar won' hold numerical value if it' never been assigned one the compiler will complain if you try to use variable tha... |
24,776 | longer needin ++you use delete in javayou don' need to worry about it java periodically looks through each block of memory that was obtained with new to see if valid references to it still exist if there are no such referencesthe block is returned to the free memory store this is called garbage collection in +almost ev... |
24,777 | carpart cp cp ifcp equals(cp system out println("they're equal")this works because all objects in java are implicitly derived from the object class overloaded operators this is easythere are no overloaded operators in java in ++you can redefine +*=and most other operators so they behave differently for objects of parti... |
24,778 | need no suffix literals of type long use suffix (as in )literals of the other integer types need no suffix java is more strongly typed than and ++many conversions that were automatic in those languages require an explicit cast in java all types not shown in table such as stringare classes input/output for the console-m... |
24,779 | public static string getstring(throws ioexception inputstreamreader isr new inputstreamreader(system in)bufferedreader br new bufferedreader(isr)string br readline()return sthis method returns string objectwhich is composed of characters typed on the keyboard and terminated with the enter key besides importing java io ... |
24,780 | subsequent input inputting integers to read numbersyou make string object as shown before and convert it to the type you want using conversion method here' methodgetint()that converts input into type int and returns itpublic int getint(throws ioexception string getstring()return integer parseint( )the parseint(method o... |
24,781 | summary data structure is the organization of data in computer' memory or in disk file the correct choice of data structure allows major improvements in program efficiency examples of data structures are arraysstacksand linked lists an algorithm is procedure for carrying out particular task in javaan algorithm is usual... |
24,782 | record often represents real-world objectsuch as an employee or car part record is divided into fields each field stores one characteristic of the object described by the record key is field in record that' used to carry out some operation on the data for examplepersonnel records might be sorted by lastname field datab... |
24,783 | this applet demonstrates the three fundamental procedures mentioned abovethe ins button inserts new data item the find button searches for specified data item the del button deletes specified data item using the new buttonyou can create new array of size you specify you can fill this array with as many data items as yo... |
24,784 | where this is because it knows how many items are already in the array the new item is simply inserted in the next available space searching and deletionhoweverare not so fast in no-duplicates mode you're on your honor not to insert an item with the same key as an existing item if you dothe applet displays an error mes... |
24,785 | figure deleting an item if the item in cell ( in the figureis deletedthen the item in would shift into the item in would shift into and so on to the last occupied cell during the deletion processonce the item is locatedthe applet will shift down the contents of the higherindexed cells as you continue to press the del b... |
24,786 | insertion is the same with duplicates allowed as when they're nota single step inserts the new item but rememberif duplicates are not allowedand there' possibility the user will attempt to input the same key twiceyou may need to check every existing item before doing an insertion deletion with duplicates deletion may b... |
24,787 | later in this and others throughout this book the basics of arrays in java the preceding section showed graphically the primary algorithms used for arrays now we'll see how to write programs to carry out these algorithmsbut we first want to cover few of the fundamentals of arrays in java if you're java expertyou can sk... |
24,788 | intarray[ /get contents of fourth element of array /insert into the eighth cell remember that in javaas in and ++the first element is numbered so that the indices in an array of elements run from to if you use an index that' less than or greater than the size of the array less you'll get the "array index out of boundsr... |
24,789 | /insert items arr[ arr[ arr[ arr[ arr[ arr[ arr[ arr[ arr[ nelems /now items in array //for( = <nelemsj++/display items system out print(arr[ ")system out println("")//searchkey /find item with key for( = <nelemsj++/for each elementif(arr[ =searchkey/found itembreak/yesexit before end if( =nelems/at the endsystem out p... |
24,790 | found the data we're storing in this array is type int we've chosen primitive type to simplify the coding generally the items stored in data structure consist of several fieldsso they are represented by objects rather than primitive types we'll see an example of this toward the end of this insertion inserting an item i... |
24,791 | the programmaking it easier to design and understand (and in real programs to modify and maintainin array java we used an array as data storage structurebut we treated it simply as language element now we'll encapsulate the array in classcalled lowarray we'll also provide class methods by which objects of other classes... |
24,792 | arr setelem( )arr setelem( )arr setelem( )arr setelem( )arr setelem( )arr setelem( )arr setelem( )nelems /now items in array //for( = <nelemsj++/display items system out print(arr getelem( ")system out println("")//int searchkey /search for data item for( = <nelemsj++/for each elementif(arr getelem( =searchkey/found it... |
24,793 | in lowarray javawe essentially wrap the class lowarray around an ordinary java array the array is hidden from the outside world inside the classit' privateso only lowarray class methods can access it there are three lowarray methodssetelem(and getelem()which insert and retrieve an elementrespectivelyand constructorwhic... |
24,794 | also notice that there' no convenient way to display the contents of the array somewhat crudelythe lowarrayapp class simply uses for loop and the getelem(method for this purpose we could avoid repeated code by writing separate method for lowarrayapp that it could call to display the array contentsbut is it really the r... |
24,795 | listing the higharray java program /higharray java /demonstrates array class with high-level interface /to run this programc>java higharrayapp import java io */for / ///////////////////////////////////////////////////////////////class higharray private double[ /ref to array private int nelems/number of data items //pub... |
24,796 | /increment size //public boolean delete(double valueint jfor( = <nelemsj++/look for it ifvalue = [jbreakif( ==nelems/can' find it return falseelse /found it for(int =jk<nelemsk++/move higher ones down [ka[ + ]nelems--/decrement size return true/end delete(//public void display(/displays array contents for(int = <nelems... |
24,797 | arr insert( )arr display()/display items int searchkey /search for item ifarr find(searchkeysystem out println("found searchkey)else system out println("can' find searchkey)arr delete( )arr delete( )arr delete( )/delete items arr display()/end main(/display items again /end class higharrayapp the higharray class is now... |
24,798 | see the same interface used with somewhat different data structure abstraction the process of separating the how from the what--how an operation is performed inside classas opposed to what' visible to the class user--is called abstraction abstraction is an important aspect of software engineering by abstracting class f... |
24,799 | try out the ins and del buttons as well use ins to insert an item with key value that will go somewhere in the middle of the existing items you'll see that insertion requires moving all the items with larger key values larger than the item being inserted use the del button to delete an item from the middle of the array... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.