Given an integer array nums, rotate the array to the right by k steps, where k is non-negative. rotate 1 steps to the right: [7,1,2,3,4,5,6] rotate 2 steps to the right: [6,7,1,2,3,4,5] rotate 3 steps ...

//Given an N * N 2D integer matrix, rotate the matrix by 90 degrees clockwise. //The rotation must be done in place, meaning the input 2D matrix must be modified directly.