func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<pair<long long, long long> > v;   bool cmp(pair<long long, long long> a, pair<long long, long long> b) {     if (a.first == b.first) a.second < b.second;     return a.first > b.first;   }   int main() {     long long t, n, arr[200005], brr[200005], i;     cin >> t;     while (t--) {       cin >> n;       for (i = 0; i < n; i++) cin >> arr[i];       for (i = 0; i < n; i++) cin >> brr[i];       for (i = 0; i < n; i++) v.push_back({arr[i], brr[i]});       sort(v.begin(), v.end(), cmp);       long long self = 0;       long long deli = v[0].first;       long long mx = max(self, deli);       long long mn = deli;       for (i = 1; i < n; i++) {         self += v[i - 1].second;         deli = v[i].first;         mx = max(self, deli);         mn = min(mn, mx);       }       mn = min(mn, self + v[n - 1].second);       cout << mn << endl;       v.clear();     }     return 0;   }   