Description
Given an 2-dimensional array, please find the non-zero values and print out (row, col, value) tuples.
Input
First line indicates size of the 2-dimensional array is M(0<M<=100) rows by N(0<N<=100) columns.
The following M lines are rows of the 2-dimensional array, and each line contains N integers.
Output
(row, col, value) tuples of non-zero elements, one tuple each line. Tuples are sorted by row major order. Index number starts from 0.
All of the integers at the same line are separated by a space, and there is a ‘\n’ at the end of each line.
