Submission #1064119

#	Time	Username	Problem	Language	Result	Execution time	Memory
1064119		wood	Friend (IOI14_friend)	C++17	19 / 100	1 ms	600 KiB

friend

#include "friend.h"
#include <bits/stdc++.h>
#define pb push_back
#define ll long long
using namespace std;

// Find out best sample

void getdp(int i, vector<int> children[], int n, int dp[][2], int confidence[]) {
	dp[i][0] = 0; dp[i][1] = confidence[i];
	if(children[i].empty())
		return;
	for(int x : children[i]){
		getdp(x,children,n,dp,confidence);
		dp[i][0]+=max(dp[x][1],dp[x][0]);
		dp[i][1]+=dp[x][0];
	}
}

int findSample(int n,int confidence[],int host[],int protocol[]){
	int dp[n][2];
	vector<int> children[n];
	for(int i = 1; i<n; i++)
		children[host[i]].pb(i);
	getdp(0,children,n,dp,confidence);
	return max(dp[0][0],dp[0][1]);
}

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