Submission #120007

#	Time	Username	Problem	Language	Result	Execution time	Memory
120007		E869120	Editor (BOI15_edi)	C++14	20 / 100	45 ms	1452 KiB

edi

#include <iostream>
using namespace std;

int N, A[100009], P[100009], par[100009];

int main() {
	cin >> N;
	for (int i = 1; i <= N; i++) cin >> A[i];
	for (int i = 1; i <= N; i++) {
		if (A[i] >= 0) {
			P[i] = 1;
		}
		else {
			P[i] = 1;
			for (int j = i - 1; j >= 1; j--) {
				int level = 0; if (A[j] < 0) level = -A[j];
				if (level < -A[i] && P[j] == 1) { par[i] = j; break; }
			}
			int cx = i;
			while (A[cx] < 0) {
				cx = par[cx];
				P[cx] ^= 1;
			}
		}

		int ans = 0;
		for (int j = 1; j <= i; j++) {
			if (P[j] == 1 && A[j] >= 1) ans = A[j];
		}
		cout << ans << endl;
	}
	return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 15
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37