Izbori [електронски '10] (NEDOVRSENO)

#include <bits/stdc++.h>
using namespace std;

int main() {
    int n; cin >> n;
    multiset<int> g;
    int f; cin >> f;

    for (int i = 1; i < n; ++i) {
        int x; cin >> x;
        if (x >= f) {
            g.insert(x);
        }
    }
    int c = 0;
    vector<multiset<int>::iterator> removeit;
    while (!g.empty() && *g.rbegin() > f) {
        for (multiset<int>::iterator it = g.begin(); it != g.end(); ++it) {
            f++;
            c++;
            if (*it - c < f) {
                removeit.push_back(it);
            }
        }
        while (!removeit.empty()) {
            cout << "removing " << *removeit[0] << " because " << *removeit[0] << "-" << c << "(c) < " << f << "(f)\n";
            g.erase(removeit[0]);
            removeit.erase(removeit.begin());
        }
    }

    cout << c << endl;
}