func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int n, m;     cin >> n >> m;     int a[n + 1];     for (int i = 1; i <= n; ++i) cin >> a[i];     int ans = 0;     for (int i = 0; i < m; ++i) {       int u, v;       cin >> u >> v;       ans += min(a[u], a[v]);     }     cout << ans << endl;   }   