Submission #1160073

#	Time	Username	Problem	Language	Result	Execution time	Memory
1160073		adriines06	Infinite Race (EGOI24_infiniterace2)	C++20	100 / 100	22 ms	9988 KiB

Main

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
void solve(){
    int n,t,ans=0; cin>>n>>t;
    unordered_set<int>s;
    while(t--){
        int x; cin>>x;
        if(s.find(x)!=s.end()){
            ans++;
            s.clear();
            s.insert(x);
        }
        else{
            if(x>0) s.insert(x);
            else s.erase(abs(x));
        }
    }
    cout<<ans;
    
    

}
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    solve();
}

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