제출 #1046441

#제출 시각아이디문제언어결과실행 시간메모리
1046441tolbi친구 (IOI14_friend)C++17
100 / 100
15 ms2184 KiB
#include "friend.h" #define max(x,y) (x>y?x:y) // Find out best sample int findSample(int n,int confidence[],int host[],int protocol[]){ int dp[n][2]={}; for (int i = 0; i < n; ++i) { dp[i][1]=confidence[i]; } for (int i = n-1; i >= 1; i--){ int nd = host[i]; if (protocol[i]==0){ dp[nd][0]+=max(dp[i][1],dp[i][0]); dp[nd][1]+=dp[i][0]; } else if (protocol[i]==1){ dp[nd][1]=max(dp[nd][1]+max(dp[i][0],dp[i][1]),dp[nd][0]+dp[i][1]); dp[nd][0]+=dp[i][0]; } else { dp[nd][1]=max(dp[nd][1]+dp[i][0],dp[nd][0]+dp[i][1]); dp[nd][0]+=dp[i][0]; } } return max(dp[0][0],dp[0][1]); }
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