func_code_string: #include <bits/stdc++.h>   using namespace std;   using ll = long long;   int main() {     ios_base::sync_with_stdio(false);     int N;     cin >> N;     ll ans = 0;     priority_queue<int, vector<int>, greater<int>> q;     for (int i = 0; i < N; ++i) {       int v;       cin >> v;       q.emplace(v);       q.emplace(v);       ans += v - q.top();       q.pop();     }     cout << ans <<   n ;     return 0;   }   