Submission #1309552

#	Time	Username	Problem	Language	Result	Execution time	Memory
1309552		Newtonabc	Infinite Race (EGOI24_infiniterace2)	C++20	100 / 100	105 ms	9644 KiB

Main

#include<bits/stdc++.h>
using namespace std;
const int N=2e5+10;
bool st[N];
int cnt[N];
int main(){
    int n,q,acc=0;
    cin>>n >>q;
    set<int> s;
    while(q--){
        int x;
        cin>>x;
        if(x<0){
            x=-x;
            s.erase(x);
        }
        else{
            if(s.find(x)==s.end()) s.insert(x);
            else{
                acc++;
                s.clear();
                s.insert(x);
            }
        }
    }
    //for(int i=1;i<=n;i++) cout<<cnt[i] <<" ";
    cout<<acc;
}

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