Submission #1146774

#	Time	Username	Problem	Language	Result	Execution time	Memory
1146774		FZ_Laabidi	Infinite Race (EGOI24_infiniterace2)	C++20	100 / 100	102 ms	9800 KiB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;
int n, q, x;

signed main() {
    cin >> n >> q;
    set<int> g;
    int count =0;
    for (int i=0; i<q; i++){
        cin >> x;
        if(x>0){
           if(g.count(-x)!=0)g.erase(-x);
           else if(g.count(x)>0){
                g.clear();
                count++;
           }
           g.insert(x);
        }
        else g.insert(x);
    }
    cout << count << endl;
}

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