제출 #93843

#제출 시각아이디문제언어결과실행 시간메모리
93843Bodo171친구 (IOI14_friend)C++14
35 / 100
32 ms3448 KiB
#include "friend.h"
#include <iostream>
using namespace std;
const int nmax=100005;
int best[nmax][2];
int a[nmax],val[nmax];
int nr,p,tip,i,tt;
int findSample(int n,int confidence[],int host[],int protocol[]){
    for(i=0;i<n;i++)
        best[i][1]=confidence[i];
    for(int i=n-1;i>=1;i--)
    {
        tt=host[i];tip=protocol[i];
        if(tip==0)
        {
            best[tt][0]+=max(best[i][0],best[i][1]);
            best[tt][1]+=best[i][0];
        }
        if(tip==1)
        {
            best[tt][0]+=best[i][0];
            best[tt][1]=max(max(best[tt][0]+best[i][1],best[tt][1]+best[i][0]),best[tt][1]+best[i][1]);
        }
        if(tip==2)
        {
            best[tt][0]+=best[i][0];
            best[tt][1]=max(best[tt][0]+best[i][1],best[tt][1]+best[i][0]);
        }
    }
	return max(best[0][0],best[0][1]);
}
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