제출 #1117278

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1117278		thelegendary08	Infinite Race (EGOI24_infiniterace2)	C++17	100 / 100	68 ms	11168 KiB

Main

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#include<bits/stdc++.h>
#define pb push_back
#define int long long
#define vi vector<int>
#define vvi vector<vector<int>>
#define vll vector<long long int>
#define vvll vector<vector<long long int>>
#define pii pair<int, int>
#define vpii vector<pair<int, int>>
#define vc vector<char>
#define vvc vector<vector<char>>
#define vb vector<bool>
#define mii map<int,int>
#define mll map<long long int, long long int>
#define mivi map<int,vector<int>>
#define f0r(i,n) for(int i=0;i<n;i++)
#define FOR(i,k,n) for(int i=k;i<n;i++)
using namespace std;
signed main(){
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	//ifstream cin(".in");
	//ofstream cout(".out");
	int n;
	cin>>n;
	int q;
	cin>>q;
	//vi fb(n, -1);
	//vi ans(n, 0);
	int ans = 0;
	set<int>s;
	while(q--){
		int x;
		cin>>x;
		if(x < 0){
			s.erase(-x);
		}
		else{
			if(s.count(x)){
				ans++;
				s = set<int>();
			}
			s.insert(x);
		}
	}
	cout<<ans;
}

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