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 a binary string(i.e. with characters 0 and 1) S consisting of characters S1, S2, …, SN. In a single operation, you can choose

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.

Given a non-negative number represented as an array of digits, add 1 to the number ( increment the number represented by the digits ).

You are in an infinite 2D grid where you can move in any of the 8 directions. You are given a sequence of points and the order in which you