func_code_string: #include <bits/stdc++.h>   using namespace std;   int b[600][600], n, m, q, row[600];   int main() {     ios::sync_with_stdio(false);     scanf( %d%d%d , &n, &m, &q);     for (int i = 1; i <= n; i++)       for (int j = 1; j <= m; j++) {         int x;         scanf( %d , &x);         b[i][j] = x;       }     int ans = 0;     for (int i = 1; i <= n; i++) {       int len = 0;       int maxlen = 0;       for (int j = 1; j <= m; j++) {         if (b[i][j])           len++;         else           len = 0;         maxlen = max(len, maxlen);       }       row[i] = maxlen;     }     while (q--) {       int i, j;       scanf( %d%d , &i, &j);       b[i][j] ^= 1;       int len = 0;       int maxlen = 0;       for (j = 1; j <= m; j++) {         if (b[i][j])           len++;         else           len = 0;         maxlen = max(len, maxlen);       }       row[i] = maxlen;       int ans = 0;       for (int ii = 1; ii <= n; ii++) {         ans = max(ans, row[ii]);       }       printf( %d n , ans);     }     return 0;   }   