Submission #1166258

#	Time	Username	Problem	Language	Result	Execution time	Memory
1166258		uranhishig	Infinite Race (EGOI24_infiniterace2)	C++20	100 / 100	224 ms	19016 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(a) (a).begin(),(a).end()
#define rep(i, n) for(int i = 0; i < (n); i++)
#define rep1(i, n) for(int i = 1; i <= (n); i++)

const int mod = 1000000007;
map<int, int> mp;
int O = 0;

signed main(){
	int n, q;	cin >> n >> q;
	int cur = 1, ans = 0;
	while (q--) {
		int x;	cin >> x;
		mp[x]++;
		if (x < 0) {
			mp[-x] = 0;
		}
		else {
			if (mp[x] > cur) {
				ans++;
				cur++;
			}
			mp[x] = cur;
		}
	}
	cout << ans << endl;
	return 0;
}

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