제출 #1120098

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1120098		ezzzay	Infinite Race (EGOI24_infiniterace2)	C++14	29 / 100	38 ms	2560 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
const int N=3e5+5;
int mp[N], urd[N];
int pm[N];
signed main(){
    int n,q;
    cin>>n>>q;
    for(int i=0;i<n;i++)urd[i]=-1;
    int ans=0;
    int p=-1;
    while(q--){
        int x;
        cin>>x;
        if(x<0){
            x*=-1;
            if(urd[x]==1)mp[x]++;
            urd[x]=1;
        }
        else{
            if(urd[x]==0){
                pm[x]++;
                if(p==x)ans=max(ans,ans+1);
                ans=max(ans,pm[x]);
            }
            urd[x]=0;
        }
        p=abs(x);
    }
    cout<<ans;
}

• Subtask 1: 29 / 29
• Subtask 2: 0 / 34
• Subtask 3: 0 / 22
• Subtask 4: 0 / 15