제출 #857169

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
857169		sunwukong123	친구 (IOI14_friend)	C++14	35 / 100	20 ms	3196 KiB

friend

#include "friend.h"
#include <bits/stdc++.h>
using namespace std;
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
const int MAXN = -1;
const int inf=1000000500ll;
const int MOD = (int)1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef pair<int,int> pi; 

// Find out best sample
int findSample(int n,int confidence[],int host[],int protocol[]){
	int oth[n+5];memset(oth,0,sizeof oth);
	for(int i=n-1;i>0;i--){

		if(protocol[i] == 0){
			confidence[host[i]]=max(confidence[i],confidence[host[i]]+oth[i]);
			oth[host[i]] += max(confidence[i], oth[i]);
		} else if(protocol[i] == 1){
			confidence[host[i]] += max(confidence[i], oth[i]);
			oth[host[i]]=oth[host[i]]+oth[i];
		} else{
			confidence[host[i]]=max(confidence[i],confidence[host[i]]+oth[i]);
			oth[host[i]]=oth[host[i]]+oth[i];
		}
	}
	return max(confidence[0],oth[0]);
}

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