Submission #132254

#	Time	Username	Problem	Language	Result	Execution time	Memory
132254		mraron	Friend (IOI14_friend)	C++14	100 / 100	38 ms	3068 KiB

friend

#include "friend.h"
#include<bits/stdc++.h>
using namespace std;

int findSample(int n,int confidence[],int host[],int protocol[]){
	vector<int> cost(n);
	for(int i=0;i<n;++i) cost[i]=confidence[i];
	
	int ans=0;
	for(int i=n-1;i>=1;--i) {
		if(protocol[i]==0) {
			ans+=cost[i];
			cost[host[i]]=max(0, cost[host[i]]-cost[i]);
		}else if(protocol[i]==1) {
			cost[host[i]]+=cost[i];
		}else {
			cost[host[i]]=max(cost[host[i]], cost[i]);
		}
	}
	
	return ans+=cost[0];
}

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