You have to print clockwise rotations of a given 2-D array at given times, provided there is one clockwise rotation of the array per unit time.
Whatever be the times at which the array is asked to be displayed, it can have only four states which can be found by taking T modulo 4, where T is the time at which we need to print the array. With some observation, the array can be printed easily by altering the looping variables.
AUTHOR’S AND TESTER’S SOLUTIONS:
Author’s solution can be found here.