func_code_string: #include <bits/stdc++.h>   using namespace std;   long long n, k, ans = 34343434;   vector<long long> a;   vector<long long> b;   int main() {     cin >> n;     for (int i = 0; i < n; i++) {       long long x, y;       cin >> x >> y;       if (x == 1)         a.push_back(y);       else         b.push_back(y);     }     sort(a.begin(), a.end());     sort(b.begin(), b.end());     for (int v = 0; v <= a.size(); v++) {       for (int u = 0; u <= b.size(); u++) {         long long width = v + u * 2, len = 0;         for (int i = 0; i < a.size() - v; i++) len += a[i];         for (int i = 0; i < b.size() - u; i++) len += b[i];         if (width >= len) ans = min(ans, width);       }     }     cout << ans << endl;     return 0;   }   