func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long inf = (long long)2 * 1e9;   const long long MOD = (long long)1e9 + 7;   const long long P = 239;   const long long MAX_N = 100000;   const long long ABC = 26;   const long double pi = 3.1415926535897932384626;   const long double eps = 1e-6;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.precision(20);     long long c, h1, h2, w1, w2;     cin >> c >> h1 >> h2 >> w1 >> w2;     if (w2 > w1) {       swap(h1, h2);       swap(w1, w2);     }     if (w1 * w1 >= c) {       long long ans = 0;       for (long long i = 0; i * w1 <= c; i++)         ans = max(ans, i * h1 + (c - i * w1) / w2 * h2);       cout << ans;     } else {       if (h1 * w2 < h2 * w1) {         swap(h1, h2);         swap(w1, w2);       }       long long ans = 0;       for (long long i = 0; i < w1 && i * w2 <= c; i++)         ans = max(ans, i * h2 + (c - i * w2) / w1 * h1);       cout << ans;     }     return 0;   }   