제출 #536152

#제출 시각아이디문제언어결과실행 시간메모리
536152KoD친구 (IOI14_friend)C++17
35 / 100
1 ms340 KiB
#include "friend.h"
#include <vector>
#include <algorithm>
using namespace std;

int findSample(int n, int confidence[], int host[], int protocol[]) {
	vector<int> p(n), q(n);
	for (int i = 0; i < n; ++i) {
		p[i] = confidence[i];
	}
	for (int i = n - 1; i > 0; --i) {
		const int j = host[i];
		if (protocol[i] == 0) {
			p[j] += q[i];
			q[j] += max(p[i], q[i]);
		} else if (protocol[i] == 1) {
			p[j] += max(p[i], q[i]);
			q[j] += q[i];
		} else {
			p[j] = max(p[i] + q[j], q[i] + p[j]);
			q[j] += q[i];
		}
	}
	return max(p[0], q[0]);
}
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