제출 #1309551

#제출 시각아이디문제언어결과실행 시간메모리
1309551NewtonabcInfinite Race (EGOI24_infiniterace2)C++20
51 / 100
1095 ms752 KiB
#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; while(q--){ int x; cin>>x; if(x<0){ x=-x; st[x]=0; } else{ if(st[x]==0) st[x]=1; else{ acc++; for(int i=1;i<=n;i++) if(i!=x) st[i]=0; } } } //for(int i=1;i<=n;i++) cout<<cnt[i] <<" "; cout<<acc; }
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