제출 #114917

#제출 시각아이디문제언어결과실행 시간메모리
114917luciocf친구 (IOI14_friend)C++14
100 / 100
32 ms3448 KiB
#include <bits/stdc++.h> #include "friend.h" using namespace std; const int maxn = 1e5+10; int dp[2][maxn]; int findSample(int n, int confidence[], int host[], int protocol[]) { for (int i = 0; i < n; i++) dp[1][i] = confidence[i]; for (int i = n-1; i > 0; i--) { if (protocol[i] == 0) { dp[0][host[i]] += max(dp[0][i], dp[1][i]); dp[1][host[i]] += dp[0][i]; } else if (protocol[i] == 1) { dp[1][host[i]] = max(dp[1][host[i]], dp[0][host[i]]) + max(dp[0][i], dp[1][i]); dp[0][host[i]] += dp[0][i]; } else { dp[1][host[i]] = max(dp[0][host[i]]+dp[1][i], dp[1][host[i]]+dp[0][i]); dp[0][host[i]] += dp[0][i]; } } return max(dp[0][0], dp[1][0]); }
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