Submission #1146288

#	Time	Username	Problem	Language	Result	Execution time	Memory
1146288		FZ_Laabidi	Infinite Race (EGOI24_infiniterace2)	C++20	0 / 100	75 ms	11336 KiB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;
int n, q;
vector<int> x;
signed main() {
    cin >> n >> q;
    x.resize(q);
    set<int> people, val;
    for (int i=0; i<q; i++) {
        cin >> x[i];
        people.insert(x[i]);
    }

    int count =0;
    for (int i=0; i<q; i++) {
        if (x[i] <0)
           people.insert(x[i]);
        if (x[i]>0) {
            if (people.find(x[i])!=people.end())people.erase(x[i]);
            else count++;
        }
    }
    cout << count << endl;
}

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