제출 #719094

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
719094		mseebacher	친구 (IOI14_friend)	C++17	8 / 100	13 ms	4440 KiB

friend

#include "friend.h"
#include <bits/stdc++.h> 

using namespace std;

#define MAX_N (int) 1e3+10

vector<int> friends[MAX_N];
vector<bool> vis(MAX_N,0);

int mx = 0;
int *dummy;

void dfs(int x,int e){
	if(vis[x]) return;
	vis[x] = 1;
	mx = max(mx,dummy[x]);
	for(auto s: friends[x]){
		dfs(s,x);
	}
}

// Find out best sample
int findSample(int n,int confidence[],int host[],int protocol[]){
	dummy = confidence;
	long long ans = 0;
	for(int i = 1;i<n;i++){
		for(int j = 0;j<(int)friends[host[i]].size();j++){
			int f = friends[host[i]][j];
			friends[f].push_back(i);
			friends[i].push_back(f);
		}
		friends[i].push_back(host[i]);
		friends[host[i]].push_back(i);
	}	
	
	for(int i = 0;i<n;i++){
		if(!vis[i]){
			dfs(i,-1);
			ans += mx;
			mx = 0;
		} 
		
	}
	return ans;
}

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• Subtask 3: 8 / 8
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