Submission #369124

#	Time	Username	Problem	Language	Result	Execution time	Memory
369124		NachoLibre	Friend (IOI14_friend)	C++17	19 / 100	2 ms	492 KiB

friend

#include <bits/stdc++.h>
using namespace std;
#define sz(a) ((int)(a).size())
typedef vector<int> vint;
typedef vector<vint> vvint;
#ifndef wambule
#include "friend.h"
#else
#endif

const int N = 1003;
int dp[N][2], c[N];
vector<int> v[N];

void D(int x) {
	dp[x][0] = 0;
	dp[x][1] = c[x];
	for(int y : v[x]) {
		D(y);
		dp[x][0] += max(dp[y][0], dp[y][1]);
		dp[x][1] += dp[y][0];
	}
}

int findSample(int n, int cfd[], int hst[], int ptc[]) {
	int dr = 0;
	for(int i = 0; i < n; ++i) {
		c[i] = cfd[i];
	}
	for(int i = 1; i < n; ++i) {
		v[hst[i]].push_back(i);
	}
	D(0);
	dr = max(dp[0][0], dp[0][1]);
	return dr;
}

#ifdef wambule
int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	return 0;
}
#endif

• Subtask 1: 0 / 11
• Subtask 2: 0 / 8
• Subtask 3: 0 / 8
• Subtask 4: 19 / 19
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31