제출 #418306

#제출 시각아이디문제언어결과실행 시간메모리
418306Bill_00친구 (IOI14_friend)C++14
100 / 100
31 ms3140 KiB
#include "friend.h"
#include <bits/stdc++.h>
using namespace std;
// Find out best sample
int p[1000005],q[1000005];
int findSample(int n,int confidence[],int host[],int protocol[]){
	for(int i=0;i<n;i++){
		p[i]=confidence[i];
	}
	for(int i=n-1;i>=1;i--){
		if(protocol[i]==0){
			p[host[i]]=p[host[i]]+q[i];
			q[host[i]]=q[host[i]]+max(q[i],p[i]);
		}
		if(protocol[i]==1){
			p[host[i]]=max(max(p[host[i]]+q[i],p[i]+q[host[i]]),p[host[i]]+p[i]);
			q[host[i]]=q[i]+q[host[i]];
		}
		if(protocol[i]==2){
			p[host[i]]=max(p[host[i]]+q[i],q[host[i]]+p[i]);
			q[host[i]]=q[i]+q[host[i]];
		}
	}
	return max(p[0],q[0]);
}
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