Submission #413741

#	Time	Username	Problem	Language	Result	Execution time	Memory
413741		Antekb	Friend (IOI14_friend)	C++14	100 / 100	31 ms	3416 KiB

friend

#include "friend.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
// Find out best sample
int findSample(int n,int confidence[],int host[],int protocol[]){
	ll ans=0;
	vector<ll> w(n);
	for(int i=0; i<n; i++){
		w[i]=confidence[i];
	}
	for(int i=n-1; i>0; i--){
		if(w[i]<0)continue;
		if(protocol[i]==0){
			w[host[i]]-=w[i];
			ans+=w[i];
		}
		else if(protocol[i]==1){
			w[host[i]]=max({w[host[i]], w[host[i]]+w[i], w[i]});
		}
		else{
			w[host[i]]=max(w[host[i]], w[i]);
		}
	}
	ans+=max(0ll, w[0]);
	return ans;
}

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