Submission #155145

#	Time	Username	Problem	Language	Result	Execution time	Memory
155145		Mercenary	Friend (IOI14_friend)	C++14	8 / 100	3 ms	380 KiB

friend

#include "friend.h"
#include <bits/stdc++.h>

using namespace std;
const int maxn = 1e5 + 5;

int dp[maxn][2];

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

• Subtask 1: 0 / 11
• Subtask 2: 8 / 8
• Subtask 3: 0 / 8
• Subtask 4: 0 / 19
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31