Submission #1047372

#	Time	Username	Problem	Language	Result	Execution time	Memory
1047372		VMaksimoski008	Infinite Race (EGOI24_infiniterace2)	C++17	100 / 100	72 ms	9768 KiB

Main

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

int main() {
    int n, q, ans = 0;
    cin >> n >> q;

    set<int> s;
    while(q--) {
        int x;
        cin >> x;

        if(x > 0) {
            if(s.count(x)) {
                ans++;
                s.clear();
            }
            s.insert(x);
        } else {
            s.erase(-x);
        }
    }

    cout << ans << '\n';
    return 0;
}

• Subtask 1: 29 / 29
• Subtask 2: 34 / 34
• Subtask 3: 22 / 22
• Subtask 4: 15 / 15