Submission #1304345

#	Time	Username	Problem	Language	Result	Execution time	Memory
1304345		activedeltorre	친구 (IOI14_friend)	C++20	100 / 100	16 ms	2184 KiB

friend

#include "friend.h"

// Find out best sample
#include<iostream>
#include<vector>
using namespace std;
int p[100005];
int q[100005];
int findSample(int n,int confidence[],int host[],int protocol[])
{
    int maxval=0,sum=0,p1,q1;
    for(int i=0; i<n; i++)
    {
        p[i]=confidence[i];
    }
    for(int i=n-1;i>=1;i--)
    {
        if(protocol[i]==2)
        {
            p1=max(p[host[i]]+q[i],p[i]+q[host[i]]);
            q1=q[i]+q[host[i]];
            p[host[i]]=p1;
            q[host[i]]=q1;
        }
        else if(protocol[i]==1)
        {
            p1=max(p[host[i]]+p[i],max(p[i]+q[host[i]],p[host[i]]+q[i]));
            q1=q[i]+q[host[i]];
            p[host[i]]=p1;
            q[host[i]]=q1;
        }
        else
        {
            p1=p[host[i]]+q[i];
            q1=q[host[i]]+max(q[i],p[i]);
            p[host[i]]=p1;
            q[host[i]]=q1;
        }
    }
    return max(p[0],q[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