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  1. #include <iostream>
  2. #include <math.h>
  3. using namespace std;
  4. int main (){
  5.     int n, m, arr[100][100], sum = 0;
  6.     cin >> n >> m;
  7.     for(int i = 0; i < n; i++){
  8.         for(int j = 0; j < m; j++){
  9.             cin >> arr[i][j];
  10.         }
  11.     }
  12.     for(int i = 0; i < n; i++){
  13.         for(int j = 0; j < m; j++){
  14.             sum += arr[i][j];
  15.         }
  16.     }
  17.     cout << "Total sum: " << sum;
  18. }
  19.  
Success #stdin #stdout 0.01s 5304KB
comments (?)
stdin
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3 4
1 2 3 4
5 6 7 8
9 10 11 12
stdout
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Total sum: 78
https://ideone.com/o84FTS
language:
C++14 (gcc 8.3)
created:
36 days ago
visibility:
public

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