func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, m, q, x, y, maxi = 0, buf = 1, max_row[501];   bool arr[501][501];   int main() {     cin >> n >> m >> q;     for (int i = 0; i < n; i++) {       max_row[i] = 0;       for (int j = 0; j < m; j++) cin >> arr[i][j];     }     for (int i = 0; i < n; i++) {       buf = 0;       for (int j = 0; j < m; j++) {         if (arr[i][j] == 1)           buf++;         else           buf = 0;         max_row[i] = max(max_row[i], buf);         maxi = max(maxi, max_row[i]);       }     }     for (int i = 0; i < q; i++) {       cin >> x >> y;       if (arr[x - 1][y - 1] == 0)         arr[x - 1][y - 1] = 1;       else         arr[x - 1][y - 1] = 0;       max_row[x - 1] = 0;       buf = 0;       for (int j = 0; j < m; j++) {         if (arr[x - 1][j] == 1)           buf++;         else           buf = 0;         max_row[x - 1] = max(max_row[x - 1], buf);       }       maxi = 0;       for (int i = 0; i < n; i++) maxi = max(maxi, max_row[i]);       cout << maxi << endl;     }     return 0;   }   