Submission #1221462

#	Time	Username	Problem	Language	Result	Execution time	Memory
1221462		gry3125	Infinite Race (EGOI24_infiniterace2)	C++20	29 / 100	31 ms	2004 KiB

Main

#include <bits/stdc++.h>
#define f0r(i,n) for(int i=0;i<n;i++)
typedef long long int ll; 
using namespace std;

int main() {
    int n, q, ans = 0; cin >> n >> q;
    vector<int> cnt(n), cur(n);
    while (q--) {
        int a; cin >> a;
        int idx = abs(a);
        if (cur[idx] == 0) {
            if (a > 0) cur[idx] = 1;
            else cur[idx] = -1;
            continue;
        }
        if (a > 0 && cur[idx] == 1) cnt[idx]++;
        if (a > 0) cur[idx] = 1;
        else cur[idx] = -1;
    }
    for (int i = 0; i < n; i++) {
        ans = max(ans, cnt[i]);
    }
    cout << ans;
    return 0;
}

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