Given a string S, the task is to sort odd indices in ascending order and even indices in descending order of the string. Examples: Input: S = "Cplusplus" Output: Cululspsp Explanation: Sort Read more →
Data Structures
5 postsGiven an array A[ ] of N segments find any point common to maximum number of segments and also find the number of segments which it is common to. The segments are Read more →
You are given a string s consisting only of characters ‘a’ and ‘b’. You can delete any number of characters in s to make s balanced. s is balanced if there is Read more →
Given an array (with all elements greater than 0), create a non-decreasing array by swapping 2 elements if their gcd(Greatest Common Factor) is equal to the minimum element of the array. You Read more →
Given three arrays start[], duration[], amount[] of length N. A person can make money of amount[i] working for the time period [start[i], start[i]+duration[i]] on task i. Maximum amount of money a person Read more →
Given start and end time of all the cars in a given interval, find the maximum time gap in which no car travels. The start timings are given in sorted order. Examples: Read more →
Mex of an array is the smallest non-negative integer that does not appear in the array. Given an array of non-negative integers, find mex of its elements. Examples : Input : arr[] Read more →
Given an array arr of size n, the task is to sort this array using minimum swaps. We are allowed to swap only adjacent elements. Examples: Input: arr[] = {1, 4, 3, Read more →
Given an array with n elements, task is to calculate the difference between the sum of those elements occurring at odd indexes and those at even indexes. Note : For the above Read more →
We have n boxes in which we have to place c magnets such that minimum distance between two magnet should be maximum. As we know any two magnet become aggressive when kept Read more →