func_code_string: #include <bits/stdc++.h>   using namespace std;   long long G[333][333];   long long min(long long a, long long b, long long c) {     return min(a, min(b, c));   }   int main() {     int N;     cin >> N;     for (int i = 1; i <= N; i++)       for (int j = 1; j <= N; j++) cin >> G[i][j];     int M;     cin >> M;     while (M--) {       long long u, v, x;       cin >> u >> v >> x;       for (int i = 1; i <= N; i++)         for (int j = 1; j <= N; j++) {           G[i][j] = min(G[i][j], G[i][u] + G[v][j] + x, G[i][v] + G[u][j] + x);         }       long long sum = 0;       for (int i = 1; i <= N; i++)         for (int j = i; j <= N; j++) sum += G[i][j];       cout << sum <<    ;     }   }   