## Chef lives in an N×MN×M grid. He is currently participating in a treasure hunt, and has two items left to find. Chef knows that the Manhattan distance between the cells containing these two items is exactly kk. He wants to know, in how many different pairs of cells can the two items be present? 100% correct solution

Treasure Hunt solution codechef Chef lives in an N×MN×M grid. He is currently participating in a treasure hunt, and has two items left to find. Chef knows that the Manhattan distance between the cells containing these two items is exactly kk. He wants to know, in how many different pairs of cells can the … Read more