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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. int main() {
  6.     int m, n;
  7.     cin >> m >> n;
  8.     vector<vector<int>> a(m, vector<int>(n));
  9.  
  10.     for (int i = 0; i < m; ++i)
  11.         for (int j = 0; j < n; ++j)
  12.             cin >> a[i][j];
  13.  
  14.     int maxSum = 0;
  15.  
  16.     for (int i = 0; i < m; ++i) {
  17.         for (int j = 0; j < n; ++j) {
  18.             int sum = 0;
  19.             int x = i, y = j;
  20.             while (x < m && y < n) {
  21.                 sum += a[x][y];
  22.                 x++;
  23.                 y++;
  24.             }
  25.             if (sum > maxSum) maxSum = sum;
  26.         }
  27.     }
  28.  
  29.     cout << maxSum;
  30.     return 0;
  31. }
  32.  
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin
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3 4 
1 1 1 0
1 0 1 1
0 0 1 1
stdout
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3
https://ideone.com/Hq527y
language:
C++ (gcc 8.3)
created:
11 hours ago
visibility:
public

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