func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   int main() {     multiset<int> Q;     cin >> n;     long long ans = 0;     long long times = 0;     bool b = false;     int count = 0;     for (int i = 0; i < n; i++) {       int x;       cin >> x;       if (Q.size() == 0 || (*Q.begin()) > x) {         Q.insert(x);       } else {         ans += x - *Q.begin();         if (b) {           times += 2;           count++;           if (count == 2) {             b = false;             count = 0;           }         } else           b = true;         Q.erase(Q.begin());         Q.insert(x);         Q.insert(x);       }     }     cout << ans << endl;   }   