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// LCM of given range queries using Segment Tree #include <bits/stdc++.h> using namespace std; #define MAX 1000 // allocate space for tree int tree[4 * MAX]; // declaring the array globally int arr[MAX]; // Function to return gcd of a and b int gcd(int a, int b) { if (a == 0) return b; return gc...
constant
linear
// C++ program to find minimum and maximum using segment // tree #include <bits/stdc++.h> using namespace std; // Node for storing minimum and maximum value of given range struct node { int minimum; int maximum; }; // A utility function to get the middle index from corner // indexes. int getMid(int s, int e...
linear
logn
/* C++ Program to find LCA of u and v by reducing the problem to RMQ */ #include<bits/stdc++.h> #define V 9 // number of nodes in input tree int euler[2*V - 1]; // For Euler tour sequence int level[2*V - 1]; // Level of nodes in tour sequence int firstOccurrence[V+1]; // First occurrences of...
linear
linear
// A Divide and Conquer Program to find maximum rectangular area in a histogram #include <bits/stdc++.h> using namespace std; // A utility function to find minimum of three integers int max(int x, int y, int z) { return max(max(x, y), z); } // A utility function to get minimum of two numbers in hist[] int minVal...
linear
nlogn
// C++ program to print all words in the CamelCase // dictionary that matches with a given pattern #include <bits/stdc++.h> using namespace std; // Alphabet size (# of upper-Case characters) #define ALPHABET_SIZE 26 // A Trie node struct TrieNode { TrieNode* children[ALPHABET_SIZE]; // isLeaf is true if t...
linear
quadratic
// C++ program to construct an n x n // matrix such that every row and every // column has distinct values. #include <iostream> #include <bits/stdc++.h> using namespace std; const int MAX = 100; int mat[MAX][MAX]; // Fills non-one entries in column j // Given that there is a "1" at // position mat[i][j], this fun...
constant
quadratic
// Given a binary matrix of M X N of integers, // you need to return only unique rows of binary array #include <bits/stdc++.h> using namespace std; #define ROW 4 #define COL 5 // The main function that prints // all unique rows in a given matrix. void findUniqueRows(int M[ROW][COL]) { //Traverse through the matri...
constant
cubic
// Given a binary matrix of M X N of integers, // you need to return only unique rows of binary array #include <bits/stdc++.h> using namespace std; #define ROW 4 #define COL 5 class BST { int data; BST *left, *right; public: // Default constructor. BST(); // Parameterized constru...
linear
quadratic
// Given a binary matrix of M X N of integers, // you need to return only unique rows of binary array #include <bits/stdc++.h> using namespace std; #define ROW 4 #define COL 5 // A Trie node class Node { public: bool isEndOfCol; Node *child[2]; // Only two children needed for 0 and 1 } ; // A utility ...
quadratic
quadratic
// C++ code to print unique row in a // given binary matrix #include<bits/stdc++.h> using namespace std; void printArray(int arr[][5], int row, int col) { unordered_set<string> uset; for(int i = 0; i < row; i++) { string s = ""; for(int j = 0; ...
linear
quadratic
// A C++ program to find the count of distinct substring // of a string using trie data structure #include <bits/stdc++.h> #define MAX_CHAR 26 using namespace std; // A Suffix Trie (A Trie of all suffixes) Node class SuffixTrieNode { public: SuffixTrieNode *children[MAX_CHAR]; SuffixTrieNode() // Constructor ...
constant
linear
#include <bits/stdc++.h> using namespace std; // Function to find minimum XOR pair int minXOR(int arr[], int n) { // Sort given array sort(arr, arr + n); int minXor = INT_MAX; int val = 0; // calculate min xor of consecutive pairs for (int i = 0; i < n - 1; i++) { val = arr[i] ^ ar...
constant
nlogn
// A simple C++ program to find max subarray XOR #include<bits/stdc++.h> using namespace std; int maxSubarrayXOR(int arr[], int n) { int ans = INT_MIN; // Initialize result // Pick starting points of subarrays for (int i=0; i<n; i++) { int curr_xor = 0; // to store xor of current subarra...
constant
quadratic
// C++ program for a Trie based O(n) solution to find max // subarray XOR #include<bits/stdc++.h> using namespace std; // Assumed int size #define INT_SIZE 32 // A Trie Node struct TrieNode { int value; // Only used in leaf nodes TrieNode *arr[2]; }; // Utility function to create a Trie node TrieNode *ne...
linear
linear
// C++ code to demonstrate operations of Binary Index Tree #include <iostream> using namespace std; /* n --> No. of elements present in input array. BITree[0..n] --> Array that represents Binary Indexed Tree. arr[0..n-1] --> Input array for which prefix sum is evaluated. */ // Returns sum of arr[0...
linear
nlogn
/* C++ program to implement 2D Binary Indexed Tree 2D BIT is basically a BIT where each element is another BIT. Updating by adding v on (x, y) means it's effect will be found throughout the rectangle [(x, y), (max_x, max_y)], and query for (x, y) gives you the result of the rectangle [(0, 0), (x, y)], assuming the to...
quadratic
nlogn
// A Simple C++ O(n^3) program to count inversions of size 3 #include<bits/stdc++.h> using namespace std; // Returns counts of inversions of size three int getInvCount(int arr[],int n) { int invcount = 0; // Initialize result for (int i=0; i<n-2; i++) { for (int j=i+1; j<n-1; j++) { ...
constant
cubic
// A O(n^2) C++ program to count inversions of size 3 #include<bits/stdc++.h> using namespace std; // Returns count of inversions of size 3 int getInvCount(int arr[], int n) { int invcount = 0; // Initialize result for (int i=1; i<n-1; i++) { // Count all smaller elements on right of arr[i] ...
constant
quadratic
// C++ program to count the number of inversion // pairs in a 2D matrix #include <bits/stdc++.h> using namespace std; // for simplicity, we are taking N as 4 #define N 4 // Function to update a 2D BIT. It updates the // value of bit[l][r] by adding val to bit[l][r] void update(int l, int r, int val, int bit[][N + 1...
quadratic
logn
// Naive algorithm for building suffix array of a given text #include <iostream> #include <cstring> #include <algorithm> using namespace std; // Structure to store information of a suffix struct suffix { int index; char *suff; }; // A comparison function used by sort() to compare two suffixes int cmp(stru...
linear
nlogn
// C++ program to insert a node in AVL tree #include<bits/stdc++.h> using namespace std; // An AVL tree node class Node { public: int key; Node *left; Node *right; int height; }; // A utility function to get the // height of the tree int height(Node *N) { if (N == NULL) return 0; ...
constant
nlogn
// C++ program to find N'th element in a set formed // by sum of two arrays #include<bits/stdc++.h> using namespace std; //Function to calculate the set of sums int calculateSetOfSum(int arr1[], int size1, int arr2[], int size2, int N) { // Insert each pair sum into set. Note that a set ...
linear
quadratic
#include <iostream> using namespace std; void constructLowerArray(int arr[], int* countSmaller, int n) { int i, j; // Initialize all the counts in // countSmaller array as 0 for (i = 0; i < n; i++) countSmaller[i] = 0; for (i = 0; i < n; i++) { for (j =...
constant
quadratic
#include <bits/stdc++.h> using namespace std; void merge(vector<pair<int, int> >& v, vector<int>& ans, int l, int mid, int h) { vector<pair<int, int> > t; // temporary array for merging both halves int i = l; int j = mid + 1; while (i < mid + 1 && j <= h) { // v[i].fir...
linear
nlogn
#include <iostream> using namespace std; #include <stdio.h> #include <stdlib.h> // An AVL tree node struct node { int key; struct node* left; struct node* right; int height; // size of the tree rooted // with this node int size; }; // A utility function to get // maximum of two integ...
linear
nlogn
#include <bits/stdc++.h> using namespace std; // BST node structure class Node { public: int val; int count; Node* left; Node* right; // Constructor Node(int num1, int num2) { this->val = num1; this->count = num2; this->left = this->right = NULL; } }; // F...
linear
quadratic
// C++ program to sort an array according absolute // difference with x. #include <bits/stdc++.h> using namespace std; // Function to sort an array according absolute // difference with x. void rearrange(int arr[], int n, int x) { multimap<int, int> m; multimap<int, int>::iterator it; // Store values in...
linear
nlogn
// CPP program for the above approach #include <bits/stdc++.h> using namespace std; void rearrange(int arr[], int n, int x) { /* We can send the value x into lambda expression as follows: [capture]() { //statements //capture value can be used inside ...
constant
nlogn
// C++ program to find maximum product of an increasing // subsequence of size 3 #include <bits/stdc++.h> using namespace std; // Returns maximum product of an increasing subsequence of // size 3 in arr[0..n-1]. If no such subsequence exists, // then it returns INT_MIN long long int maxProduct(int arr[], int n) { ...
constant
cubic
// C++ program to find maximum product of an increasing // subsequence of size 3 #include <bits/stdc++.h> using namespace std; // Returns maximum product of an increasing subsequence of // size 3 in arr[0..n-1]. If no such subsequence exists, // then it returns INT_MIN long long int maxProduct(int arr[], int n) { ...
linear
nlogn
// C++ Code for the above approach #include <bits/stdc++.h> using namespace std; /* A binary tree node has data, a pointer to left child and a pointer to right child */ class Node { public: int data; Node* left; Node* right; }; // Function to return a new Node Node* newNode(int data) { Node* node ...
constant
linear
/* CPP program to check if a tree is height-balanced or not */ #include <bits/stdc++.h> using namespace std; /* A binary tree node has data, pointer to left child and a pointer to right child */ class Node { public: int data; Node* left; Node* right; Node(int d) { int data = d; l...
linear
quadratic
// C++ code to implement the approach #include <bits/stdc++.h> using namespace std; // Structure of a tree node struct Node { int key; struct Node* left; struct Node* right; Node(int k) { key = k; left = right = NULL; } }; // Function to check if tree is height balanced int...
linear
linear
// C++ program to find number of islands // using Disjoint Set data structure. #include <bits/stdc++.h> using namespace std; // Class to represent // Disjoint Set Data structure class DisjointUnionSets { vector<int> rank, parent; int n; public: DisjointUnionSets(int n) { ra...
quadratic
quadratic
// C++ program to find the height of the generic // tree(n-ary tree) if parent array is given #include <bits/stdc++.h> using namespace std; // function to fill the height vector int rec(int i, int parent[], vector<int> height) { // if we have reached root node the // return 1 as height of root node if (pa...
linear
linear
// C++ program to find number // of children of given node #include <bits/stdc++.h> using namespace std; // Represents a node of an n-ary tree class Node { public: int key; vector<Node*> child; Node(int data) { key = data; } }; // Function to calculate number // of children of given ...
linear
linear
// C++ program to find sum of all // elements in generic tree #include <bits/stdc++.h> using namespace std; // Represents a node of an n-ary tree struct Node { int key; vector<Node*> child; }; // Utility function to create a new tree node Node* newNode(int key) { Node* temp = new Node; temp->key = k...
linear
linear
// C++ program to create a tree with left child // right sibling representation. #include <bits/stdc++.h> using namespace std; struct Node { int data; struct Node* next; struct Node* child; }; // Creating new Node Node* newNode(int data) { Node* newNode = new Node; newNode->next = newNode->child...
linear
linear
// C++ program to count number of nodes // which has more children than its parent #include<bits/stdc++.h> using namespace std; // function to count number of nodes // which has more children than its parent int countNodes(vector<int> adj[], int root) { int count = 0; // queue for applying BFS queu...
linear
linear
// C++ program to generate short url from integer id and // integer id back from short url. #include<iostream> #include<algorithm> #include<string> using namespace std; // Function to generate a short url from integer ID string idToShortURL(long int n) { // Map to store 62 possible characters char map[] = "ab...
constant
linear
// A C++ program to implement Cartesian Tree sort // Note that in this program we will build a min-heap // Cartesian Tree and not max-heap. #include<bits/stdc++.h> using namespace std; /* A binary tree node has data, pointer to left child and a pointer to right child */ struct Node { int data; Node *le...
linear
nlogn
// C++ Program to search an element // in a sorted and pivoted array #include <bits/stdc++.h> using namespace std; // Standard Binary Search function int binarySearch(int arr[], int low, int high, int key) { if (high < low) return -1; int mid = (low + high) / 2; if (key == arr[mid]) re...
constant
logn
// Search an element in sorted and rotated // array using single pass of Binary Search #include <bits/stdc++.h> using namespace std; // Returns index of key in arr[l..h] if // key is present, otherwise returns -1 int search(int arr[], int l, int h, int key) { if (l > h) return -1; int mid = (l + h) ...
constant
logn
// C++ code to implement the approach #include <bits/stdc++.h> using namespace std; // This function returns true if arr[0..n-1] // has a pair with sum equals to x. bool pairInSortedRotated(int arr[], int n, int x) { // Find the pivot element int i; for (i = 0; i < n - 1; i++) if (arr[i] > arr...
constant
linear
// C++ program to find max value of i*arr[i] #include <iostream> using namespace std; // Returns max possible value of i*arr[i] int maxSum(int arr[], int n) { // Find array sum and i*arr[i] with no rotation int arrSum = 0; // Stores sum of arr[i] int currVal = 0; // Stores sum of i*arr[i] for (int i =...
constant
linear
// A Naive C++ program to find maximum sum rotation #include<bits/stdc++.h> using namespace std; // Returns maximum value of i*arr[i] int maxSum(int arr[], int n) { // Initialize result int res = INT_MIN; // Consider rotation beginning with i // for all possible values of i. for (int i=0; i<n; i++)...
constant
quadratic
// An efficient C++ program to compute // maximum sum of i*arr[i] #include<bits/stdc++.h> using namespace std; int maxSum(int arr[], int n) { // Compute sum of all array elements int cum_sum = 0; for (int i=0; i<n; i++) cum_sum += arr[i]; // Compute sum of i*arr[i] for initial // confi...
constant
linear
// C++ program to find maximum sum of all // rotation of i*arr[i] using pivot. #include <iostream> using namespace std; // fun declaration int maxSum(int arr[], int n); int findPivot(int arr[], int n); // function definition int maxSum(int arr[], int n) { int sum = 0; int i; int pivot = findPivot(arr, n...
constant
linear
// C++ program for the above approach #include <iostream> using namespace std; int* rotateArray(int A[], int start, int end) { while (start < end) { int temp = A[start]; A[start] = A[end]; A[end] = temp; start++; end--; } return A; } void leftRotate(int A[], int a, in...
linear
linear
// CPP implementation of left rotation of // an array K number of times #include <bits/stdc++.h> using namespace std; // Fills temp[] with two copies of arr[] void preprocess(int arr[], int n, int temp[]) { // Store arr[] elements at i and i + n for (int i = 0; i < n; i++) temp[i] = temp[i + n] = arr[...
linear
linear
// CPP implementation of left rotation of // an array K number of times #include <bits/stdc++.h> using namespace std; // Function to left rotate an array k times void leftRotate(int arr[], int n, int k) { // Print array after k rotations for (int i = k; i < k + n; i++) cout << arr[i % n] << " "; } /...
constant
linear
// C++ code to implement the approach #include <bits/stdc++.h> using namespace std; // Function to find the minimum value int findMin(int arr[], int n) { int min_ele = arr[0]; // Traversing over array to // find minimum element for (int i = 0; i < n; i++) { if (arr[i] < min_ele) { ...
constant
linear
// C++ program to find minimum // element in a sorted and rotated array #include <bits/stdc++.h> using namespace std; int findMin(int arr[], int low, int high) { // This condition is needed to // handle the case when array is not // rotated at all if (high < low) return arr[0]; // If t...
constant
logn
// C++ program for right rotation of // an array (Reversal Algorithm) #include <bits/stdc++.h> /*Function to reverse arr[] from index start to end*/ void reverseArray(int arr[], int start, int end) { while (start < end) { std::swap(arr[start], arr[end]); start++; ...
constant
linear
// C++ Program to solve queries on Left and Right // Circular shift on array #include <bits/stdc++.h> using namespace std; // Function to solve query of type 1 x. void querytype1(int* toRotate, int times, int n) { // Decreasing the absolute rotation (*toRotate) = ((*toRotate) - times) % n; } // Function to ...
linear
linear
// C++ implementation of left rotation of // an array K number of times #include <bits/stdc++.h> using namespace std; // Function to leftRotate array multiple times void leftRotate(int arr[], int n, int k) { /* To get the starting point of rotated array */ int mod = k % n; // Prints the rotated array fr...
constant
linear
#include <bits/stdc++.h> using namespace std; int findElement(vector<int> arr, int ranges[][2], int rotations, int index) { // Track of the rotation number int n1 = 1; // Track of the row index for the ranges[][] array int i = 0; // Initialize the left side of the ranges[][] array int ...
constant
quadratic
// CPP code to rotate an array // and answer the index query #include <bits/stdc++.h> using namespace std; // Function to compute the element at // given index int findElement(int arr[], int ranges[][2], int rotations, int index) { for (int i = rotations - 1; i >= 0; i--) { // Range[left...
constant
constant
// CPP program to split array and move first // part to end. #include <iostream> using namespace std; void splitArr(int arr[], int n, int k) { for (int i = 0; i < k; i++) { // Rotate array by 1. int x = arr[0]; for (int j = 0; j < n - 1; ++j) arr[j] = arr[j + 1]; arr[...
constant
quadratic
// CPP program to split array and move first // part to end. #include <bits/stdc++.h> using namespace std; // Function to split array and // move first part to end void splitArr(int arr[], int length, int rotation) { int tmp[length * 2] = {0}; for(int i = 0; i < length; i++) { tmp[i] = arr[i]; ...
linear
linear
// C++ program for above approach #include <iostream> using namespace std; // Function to transform the array void fixArray(int ar[], int n) { int i, j, temp; // Iterate over the array for (i = 0; i < n; i++) { for (j = 0; j < n; j++) { // Check is any ar[j] /...
constant
quadratic
// C++ program for rearrange an // array such that arr[i] = i. #include <bits/stdc++.h> using namespace std; // Function to rearrange an array // such that arr[i] = i. void fixArray(int A[], int len) { for (int i = 0; i < len; i++) { if (A[i] != -1 && A[i] != i) { int x = A[i]; ...
constant
linear
#include <iostream> #include <unordered_set> using namespace std; void fixArray(int arr[], int n) { // a set unordered_set<int> s; // Enter each element which is not -1 in set for(int i=0; i<n; i++) { if(arr[i] != -1) s.insert(arr[i]); } // Navigate through array, // and put A[i] =...
linear
linear
// C++ program for rearrange an // array such that arr[i] = i. #include <iostream> using namespace std; void fixArray(int arr[], int n) { int i = 0; while (i < n) { int correct = arr[i]; if (arr[i] != -1 && arr[i] != arr[correct]) { // if array element should be lesser than ...
constant
linear
// C++ program to rearrange the array as per the given // condition #include <bits/stdc++.h> using namespace std; // function to rearrange the array void rearrangeArr(int arr[], int n) { // total even positions int evenPos = n / 2; // total odd positions int oddPos = n - evenPos; int tempArr[n];...
linear
nlogn
#include <bits/stdc++.h> using namespace std; int main(){ int n,i,p,q; int a[]= {1, 2, 1, 4, 5, 6, 8, 8}; n=sizeof(a)/sizeof(a[0]); int b[n]; for(i=0;i<n;i++) b[i]=a[i]; sort(b,b+n); p=0;q=n-1; for(i=n-1;i>=0;i--){ if(i%2!=0){ a[i]=b[q]; q-...
linear
nlogn
/* C++ program to rearrange positive and negative integers in alternate fashion while keeping the order of positive and negative numbers. */ #include <assert.h> #include <iostream> using namespace std; // Utility function to right rotate all elements between // [outofplace, cur] void rightrotate(int arr[], ...
constant
quadratic
// C++ Program to move all zeros to the end #include <bits/stdc++.h> using namespace std; int main() { int A[] = { 5, 6, 0, 4, 6, 0, 9, 0, 8 }; int n = sizeof(A) / sizeof(A[0]); int j = 0; for (int i = 0; i < n; i++) { if (A[i] != 0) { swap(A[j], A[i]); // Partitioning the array ...
constant
linear
# C++ program to shift all zeros # to right most side of array # without affecting order of non-zero # elements # Given list arr = [5, 6, 0, 4, 6, 0, 9, 0, 8] # Storing all non zero values nonZeroValues = [x for x in arr if x != 0] # Storing all zeroes zeroes = [j for j in arr if j == 0] # Updating the answer a...
constant
linear
// C++ implementation to move all zeroes at the end of array #include <iostream> using namespace std; // function to move all zeroes at the end of array void moveZerosToEnd(int arr[], int n) { // Count of non-zero elements int count = 0; // Traverse the array. If arr[i] is non-zero, then // update t...
constant
linear
// C++ program to find minimum swaps required // to club all elements less than or equals // to k together #include <iostream> using namespace std; // Utility function to find minimum swaps // required to club all elements less than // or equals to k together int minSwap(int *arr, int n, int k) { // Find co...
constant
linear
#include <bits/stdc++.h> using namespace std; // Function for finding the minimum number of swaps // required to bring all the numbers less // than or equal to k together. int minSwap(int arr[], int n, int k) { // Initially snowBallsize is 0 int snowBallSize = 0; for (int i = 0; i < n; i++) { ...
constant
linear
// C++ implementation of // the above approach #include <iostream> void printArray(int array[], int length) { std::cout << "["; for(int i = 0; i < length; i++) { std::cout << array[i]; if(i < (length - 1)) std::cout << ", "; else std::cout <<...
quadratic
quadratic
// C++ program to print the array in given order #include <bits/stdc++.h> using namespace std; // Function which arrange the array. void rearrangeArray(int arr[], int n) { // Sorting the array elements sort(arr, arr + n); int tempArr[n]; // To store modified array // Adding numbers from sorted arr...
linear
nlogn
// C++ implementation to rearrange the array elements after // modification #include <bits/stdc++.h> using namespace std; // function which pushes all zeros to end of an array. void pushZerosToEnd(int arr[], int n) { // Count of non-zero elements int count = 0; // Traverse the array. If element encounte...
constant
linear
// C++ program to Rearrange positive and negative // numbers in a array #include <bits/stdc++.h> using namespace std; // A utility function to print an array of size n void printArray(int arr[], int n) { for (int i = 0; i < n; i++) cout<<arr[i]<<" "; } void rotateSubArray(int arr[], int l, int r) { int ...
constant
quadratic
// C++ program to Rearrange positive and negative // numbers in a array #include <stdio.h> // A utility function to print an array of size n void printArray(int arr[], int n) { for (int i = 0; i < n; i++) printf("%d ", arr[i]); printf("\n"); } // Function to Rearrange positive and negative // number...
constant
quadratic
// C++ program to Rearrange positive and negative // numbers in a array #include <iostream> using namespace std; /* Function to print an array */ void printArray(int A[], int size) { for (int i = 0; i < size; i++) cout << A[i] << " "; cout << endl; } // Merges two subarrays of arr[]. // First subarr...
linear
nlogn
// C++ program to Rearrange positive and negative // numbers in a array #include <bits/stdc++.h> using namespace std; /* Function to print an array */ void printArray(int A[], int size) { for (int i = 0; i < size; i++) cout << A[i] << " "; cout << endl; } /* Function to reverse an array. An array ca...
logn
nlogn
#include <bits/stdc++.h> using namespace std; void Rearrange(int arr[], int n) { stable_partition(arr,arr+n,[](int x){return x<0;}); } int main() { int n=4; int arr[n]={-3, 3, -2, 2}; Rearrange( arr, n); for (int i = 0; i < n; i++) cout << arr[i] << " "; ...
linear
quadratic
#include <iostream> using namespace std; void rearrangePosNegWithOrder(int *arr, int size) { int i = 0, j = 0; while (j < size) { if (arr[j] >= 0) { j++; } else { for (int k = j; k > i; k--) { int temp = arr[k]; arr[k] = arr[k - 1]; ...
constant
linear
// C++ program to rearrange an array in minimum // maximum form #include <bits/stdc++.h> using namespace std; // Prints max at first position, min at second position // second max at third position, second min at fourth // position and so on. void rearrange(int arr[], int n) { // Auxiliary array to hold modified ...
linear
linear
#include <iostream> #include<vector> #include<algorithm> using namespace std; void move(vector<int>& arr){ sort(arr.begin(),arr.end()); } int main() { vector<int> arr = { -1, 2, -3, 4, 5, 6, -7, 8, 9 }; move(arr); for (int e : arr) cout<<e << " "; return 0; } // This code is contributed b...
linear
nlogn
// A C++ program to put all negative // numbers before positive numbers #include <bits/stdc++.h> using namespace std; void rearrange(int arr[], int n) { int j = 0; for (int i = 0; i < n; i++) { if (arr[i] < 0) { if (i != j) swap(arr[i], arr[j]); j++; } ...
constant
linear
// C++ program of the above // approach #include <iostream> using namespace std; // Function to shift all the // negative elements on left side void shiftall(int arr[], int left, int right) { // Loop to iterate over the // array from left to the right while (left<=right) { // Condition...
constant
linear
#include <iostream> using namespace std; // Swap Function. void swap(int &a,int &b){ int temp =a; a=b; b=temp; } // Using Dutch National Flag Algorithm. void reArrange(int arr[],int n){ int low =0,high = n-1; while(low<high){ if(arr[low]<0){ low++; }else if(arr[high]>0){ ...
constant
linear
// C++ program to Move All -ve Element At End // Without changing order Of Array Element #include<bits/stdc++.h> using namespace std; // Moves all -ve element to end of array in // same order. void segregateElements(int arr[], int n) { // Create an empty array to store result int temp[n]; // Traversal a...
linear
linear
// CPP code to rearrange an array such that // even index elements are smaller and odd // index elements are greater than their // next. #include <iostream> using namespace std; void rearrange(int* arr, int n) { for (int i = 0; i < n - 1; i++) { if (i % 2 == 0 && arr[i] > arr[i + 1]) swap(arr[...
constant
linear
// C++ program to rearrange positive and negative // numbers #include <bits/stdc++.h> using namespace std; void rearrange(int a[], int size) { int positive = 0, negative = 1; while (true) { /* Move forward the positive pointer till negative number number not encountered */ whi...
constant
quadratic
// C++ program to rearrange positive // and negative numbers #include<iostream> using namespace std; // Swap function void swap(int* a, int i , int j) { int temp = a[i]; a[i] = a[j]; a[j] = temp; return ; } // Print array function void printArray(int* a, int n) { for(int i = 0; i < n; i++) ...
constant
quadratic
// C++ program to update every array element with // multiplication of previous and next numbers in array #include<iostream> using namespace std; void modify(int arr[], int n) { // Nothing to do when array size is 1 if (n <= 1) return; // store current value of arr[0] and update it int prev = ...
constant
linear
// C++ Program to shuffle a given array #include<bits/stdc++.h> #include <stdlib.h> #include <time.h> using namespace std; // A utility function to swap to integers void swap (int *a, int *b) { int temp = *a; *a = *b; *b = temp; } // A utility function to print an array void printArray (int arr[], int n...
constant
linear
// C++ Implementation of the above approach #include <iostream> using namespace std; void arrayEvenAndOdd(int arr[], int n) { int a[n], index = 0; for (int i = 0; i < n; i++) { if (arr[i] % 2 == 0) { a[index] = arr[i]; index++; } } for (int i = 0; i < ...
linear
linear
// CPP code to segregate even odd // numbers in an array #include <bits/stdc++.h> using namespace std; // Function to segregate even odd numbers void arrayEvenAndOdd(int arr[], int n) { int i = -1, j = 0; int t; while (j != n) { if (arr[j] % 2 == 0) { i++; // Swapping e...
constant
linear
// C++ program of above implementation #include <bits/stdc++.h> using namespace std; // Standard partition process of QuickSort(). // It considers the last element as pivot and // oves all smaller element to left of it // and greater elements to right int partition(int* arr, int l, int r) { int x = arr[r], i = ...
constant
nlogn
// STL based C++ program to find k-th smallest // element. #include <bits/stdc++.h> using namespace std; int kthSmallest(int arr[], int n, int k) { // Insert all elements into the set set<int> s; for (int i = 0; i < n; i++) s.insert(arr[i]); // Traverse set and print k-th element auto it = s.begin(); for (i...
linear
nlogn
#include <iostream> using namespace std; // Swap function to interchange // the value of variables x and y int swap(int& x, int& y) { int temp = x; x = y; y = temp; } // Min Heap Class // arr holds reference to an integer // array size indicate the number of // elements in Min Heap class MinHeap { ...
linear
nlogn
#include <bits/stdc++.h> using namespace std; // picks up last element between start and end int findPivot(int a[], int start, int end) { // Selecting the pivot element int pivot = a[end]; // Initially partition-index will be at starting int pIndex = start; for (int i = start; i < end; i++) { ...
constant
nlogn
// C++ code for k largest/ smallest elements in an array #include <bits/stdc++.h> using namespace std; // Function to find k largest array element void kLargest(vector<int>& v, int N, int K) { // Implementation using // a Priority Queue priority_queue<int, vector<int>, greater<int> >pq; for (int i ...
linear
nlogn
#include <bits/stdc++.h> using namespace std; struct Node{ int data; struct Node *left; struct Node *right; }; class Tree{ public: Node *root = NULL; void addNode(int data){ Node *newNode = new Node(); newNode->data = data; if (!root){ ...
linear
nlogn
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Dataset Card for TASTY C++ and Python Codes with Complexities

This is a dataset of code snippets with their complexities, both space and time.

As part of this initial release, we cover C++ and Python.

This data was collected as part of our work on the paper called TASTY, published at the ICLR DL4Code workshop, a few years back.

We scraped the data from the popular coding website called GeeksForGeeks (GFG). It is under the CCBY license.

We published this paper before the advent of ChatGPT, so this is not recent by any means and things on the GFG website might have changed since we scraped the data. There was also a lot of manual work that went into correcting the scraped data and putting it into the format that we needed it to be, so some of the complexities might not be exactly what you see on the GFG website. For instance, what is given as "O(n)" on the GFG website is instead written as "linear" in our dataset. In the same way, linear equivalents, "O(n+m)" are also cast to "linear". The same applies to all the classes in our dataset.

There is work being undertaken on the next version of the paper, where we plan to expand to dataset to several more languages and a lot more examples. Probably 10x more samples for 4-5 more languages. There will be a fundamental change in the tone of the work as well since TASTY was published before the ChatGPT, LLMs were not as popular then.

Dataset Details

There are more than 1000 but less than 2000 codes and their space + time complexity.

Dataset Sources

Uses

  • Classification of space and time complexity
  • Eventual Auto Regressive prediciton of the same
  • Cross Language Transfer

Direct Use

Read the paper above for direct uses.

BibTeX:

@misc{moudgalya2023tastytransformerbasedapproach,
      title={TASTY: A Transformer based Approach to Space and Time complexity}, 
      author={Kaushik Moudgalya and Ankit Ramakrishnan and Vamsikrishna Chemudupati and Xing Han Lu},
      year={2023},
      eprint={2305.05379},
      archivePrefix={arXiv},
      primaryClass={cs.SE},
      url={https://arxiv.org/abs/2305.05379}, 
}
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Paper for Banana-Leopard/TASTY