func_code_string: #include <bits/stdc++.h>   using namespace std;   const int INF = INT_MAX;   const long long INFL = LLONG_MAX;   int N, M, X[1000], a, b, c;   int main() {     ios_base::sync_with_stdio(0);     cout.precision(15);     cin >> N >> M;     for (int(i) = 1; (i) <= (N); (i)++) cin >> X[i];     long double answer = 0;     for (int(i) = 1; (i) <= (M); (i)++) {       cin >> a >> b >> c;       answer = max(answer, (long double)(X[a] + X[b]) / c);     }     cout << answer << endl;   }   