제출 #1148236

#제출 시각아이디문제언어결과실행 시간메모리
1148236Jawad_Akbar_JJInfinite Race (EGOI24_infiniterace2)C++20
100 / 100
59 ms1204 KiB
#include <iostream>

using namespace std;
int Pos[200005];

int main(){
	int n, m, cur = 1, x, Ans = 0;
	cin>>n>>m;

	for (int i=1;i<=m;i++){
		cin>>x;
		if (x < 0)
			Pos[-x] = 0;
		else{
			if (Pos[x] == cur)
				Ans++, cur++;
			Pos[x] = cur;
		}
	}
	cout<<Ans<<'\n';
}
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