Submission #1322211

#	Time	Username	Problem	Language	Result	Execution time	Memory
1322211		nurdaee	Infinite Race (EGOI24_infiniterace2)	C++20	0 / 100	1 ms	332 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define nur ios::sync_with_stdio(false);cin.tie(nullptr);
#define all(v) v.begin(),v.end()
#define int long long 
#define pb push_back
#define vc vector
const int inf = 1e18;

void solve(){
    int n;
    cin >> n;
    int q;
    cin >> q;
    map<int , int> mp;
    int cnt = 0;
    for(int i = 0; i < q; i++){
        int x;
        cin >> x;
        if( x < 0 ) mp[-x]--;
        else mp[x]++;
        if  ( mp[x] > 1 ) cnt++;
    }
    cout << cnt << "\n";
}
signed main() {
    nur 
    int t = 1;
    cin >> t;    
    while(t--) solve();
}

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