Given a positive integer n and a string s consisting only of letters D or I, you have to find any permutation of first n positive integer th

Implement the next permutation, which rearranges numbers into the numerically next greater permutation of numbers for a given array A

You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). You need to do this in place.

Given a list of non negative integers, arrange them such that they form the largest number.

You are given an array of N integers, A1, A2 ,…, AN. Return maximum value of f(i, j) for all 1 ≤ i, j ≤ N. f(i, j) is defined as |A[i] - A[j

Find the contiguous subarray within an array, A of length N which has the largest sum.