제출 #399899

#제출 시각아이디문제언어결과실행 시간메모리
399899Jasiekstrz친구 (IOI14_friend)C++17
100 / 100
33 ms2628 KiB
#include "friend.h"
#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
int findSample(int n,int confidence[],int host[],int protocol[])
{
	int ans=0;
	for(int i=n-1;i>0;i--)
	{
		confidence[i]=max(confidence[i],0);
		if(protocol[i]==0) // I
		{
			ans+=confidence[i];
			confidence[host[i]]-=confidence[i];
		}
		else if(protocol[i]==1) // My
		{
			confidence[host[i]]=max(confidence[host[i]],0);
			confidence[host[i]]+=confidence[i];
		}
		else if(protocol[i]==2) // We
		{
			confidence[host[i]]=max(confidence[host[i]],confidence[i]);
		}
	}
	return ans+max(0,confidence[0]);
}
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