제출 #1223690

#제출 시각아이디문제언어결과실행 시간메모리
1223690asli_bgInfinite Race (EGOI24_infiniterace2)C++20
29 / 100
32 ms584 KiB
#include<bits/stdc++.h> using namespace std; #define sp <<' '<< #define FOR(i,a) for(int i=0;i<(a);i++) #define FORE(i,a,b) for(int i=(a);i<(b);i++) const int MAXN=2e5+5; bool ison[MAXN]; int say[MAXN]; signed main(){ int n,q; cin>>n>>q; FORE(i,1,n) ison[i]=true; int ans=0; FOR(i,q){ int el; cin>>el; if(el<0){ ison[-el]=true; } else{ if(!ison[el]) say[el]++; ison[el]=false; } } FORE(i,1,n) ans=max(ans,say[i]); cout<<ans<<endl; }
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