# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
1148223 | Faisal_Saqib | Infinite Race (EGOI24_infiniterace2) | C++20 | 87 ms | 9804 KiB |
#include <bits/stdc++.h>
using namespace std;
int main()
{
int n,q,x,ans=0;
cin>>n>>q;
set<int> cnt;
while(q--)
{
cin>>x;
if(x>0)
{
if(cnt.find(x)!=cnt.end())
ans++,cnt.clear();
cnt.insert(x);
}
else cnt.erase(-x);
}
cout<<ans;
}
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