제출 #233231

#제출 시각아이디문제언어결과실행 시간메모리
233231anonymous친구 (IOI14_friend)C++14
16 / 100
5 ms512 KiB
#include "friend.h"
#include <iostream>
// Find out best sample
int dp[100005][2];
int findSample(int n,int confidence[],int host[],int protocol[]){
	for (int i=n-1; i>=0; i--) {
        dp[i][0] = confidence[i];
	}
	for (int i=n-1; i>0; i--) {
        if (protocol[i] == 0) {
            dp[host[i]][0] += dp[i][1];
            dp[host[i]][1] += dp[i][0];
        } else if (protocol[i] == 1) {
            dp[host[i]][0] += dp[i][0];
            dp[host[i]][1] += dp[i][1];
        } else {
            dp[host[i]][1] += dp[i][1];
            dp[host[i]][0] = std::max(dp[host[i]][0] + dp[i][1], dp[host[i]][1] + dp[i][0]);
        }
	}
	return(std::max(dp[0][0], dp[0][1]));
}
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