Submission #1214902

#	Time	Username	Problem	Language	Result	Execution time	Memory
1214902		jhe	Infinite Race (EGOI24_infiniterace2)	C++20	29 / 100	31 ms	1552 KiB

Main

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

signed main() {
    int n,q;
    cin >> n >> q;
    vector<bool> v(n, 0);
    vector<int> ans;
    for (int _ = 0; _ < q; _++) {
        int a;
        cin >> a;
        if (a < 0) v[-1 * a] = false;
        else {
            if (v[a]) ans.push_back(a);
            v[a] = true;
        }
    }
    set<int> s;
    int cnt = 0;

    for (int i: ans) {
        if (s.find(i) != s.end()) {
            cnt++;
            s.clear();
            s.insert(i);
        }
        s.insert(i);
    } 
    if (s.size()) cnt++;
    cout << cnt << "\n";
}

• Subtask 1: 29 / 29
• Subtask 2: 0 / 34
• Subtask 3: 0 / 22
• Subtask 4: 0 / 15