Traverse Matrix in Diagonal strips

Question

I thought this problem had a trivial solution, couple of for loops and some fancy counters, but apparently it is rather more complicated.

So my question is, how woul

Answer 1

public void printMatrix(int[][] matrix) {
    int m = matrix.length, n = matrix[0].length;
    for (int i = 0; i < m + n - 1; i++) {
         int start_row = i < m ? i : m - 1;
         int start_col = i < m ? 0 : i - m + 1;
         while (start_row >= 0 && start_col < n) {
               System.out.print(matrix[start_row--][start_col++]);
         }
         System.out.println("\n")
     }
}