Question
Non-zero values
Print the number of values in the array that are NOT zeros for a n*m dimensional array
Input
1st line : space separated values for n and m
Next n lines: m space separated values
Next n lines: m space separated values
Output
Number of nonzero values in the array
Example
Input:
3 3
0 0 0
0 0 1
1 0 2
Output:
3
3 3
0 0 0
0 0 1
1 0 2
Output:
3