func_code_string: #include <bits/stdc++.h>   using namespace std;   bool a[1000][1000];   int main() {     ios::sync_with_stdio(false);     int n, m, ans = 0;     cin >> n >> m;     bool tmp = 0;     for (int i = 0; i < n; i++) {       for (int j = 0; j < m; j++) {         cin >> a[i][j];       }     }     for (int i = 0; i < n; i++) {       tmp = 0;       for (int j = 0; j < m; j++) {         tmp = max(tmp, a[i][j]);         if (a[i][j] == 0 && tmp) ans++;       }     }     for (int i = 0; i < m; i++) {       tmp = 0;       for (int j = 0; j < n; j++) {         tmp = max(tmp, a[j][i]);         if (a[j][i] == 0 && tmp) ans++;       }     }     for (int i = 0; i < n; i++) {       tmp = 0;       for (int j = m - 1; j >= 0; j--) {         tmp = max(tmp, a[i][j]);         if (a[i][j] == 0 && tmp) ans++;       }     }     for (int i = 0; i < m; i++) {       tmp = 0;       for (int j = n - 1; j >= 0; j--) {         tmp = max(tmp, a[j][i]);         if (a[j][i] == 0 && tmp) ans++;       }     }     cout << ans;   }   