func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAXn = 100;   int adj[MAXn + 5][MAXn + 5];   int main() {     int n;     cin >> n;     for (int i = 0; i < n; i++) {       int u, v, c;       cin >> u >> v >> c;       u--;       v--;       adj[u][v] = c;       adj[v][u] = -1 * c;     }     bool dir = 0;     int sum[2] = {0, 0}, u = -1, v = 0;     for (int i = 0; i < n; i++)       if (adj[v][i] > 0) dir = 1;     for (int i = 0; i < n; i++) {       for (int j = 0; j < n; j++)         if (adj[v][j] != 0 && j != u) {           if (dir) {             if (adj[v][j] > 0)               sum[dir] += adj[v][j];             else {               sum[!dir] += -1 * adj[v][j];               dir = !dir;             }           } else {             if (adj[v][j] > 0) {               sum[!dir] += adj[v][j];               dir = !dir;             } else               sum[dir] += -1 * adj[v][j];           }           u = v;           v = j;           break;         }     }     cout << min(sum[0], sum[1]) << endl;     return 0;   }   