제출 #536153

#제출 시각아이디문제언어결과실행 시간메모리
536153KoD친구 (IOI14_friend)C++17
100 / 100
28 ms3372 KiB
#include "friend.h" #include <vector> #include <algorithm> using namespace std; int findSample(int n, int confidence[], int host[], int protocol[]) { vector<int> p(n), q(n); for (int i = 0; i < n; ++i) { p[i] = confidence[i]; } for (int i = n - 1; i > 0; --i) { const int j = host[i]; if (protocol[i] == 0) { p[j] += q[i]; q[j] += max(p[i], q[i]); } else if (protocol[i] == 1) { p[j] = max(p[j] + max(p[i], q[i]), p[i] + q[j]); q[j] += q[i]; } else { p[j] = max(p[i] + q[j], q[i] + p[j]); q[j] += q[i]; } } return max(p[0], q[0]); }
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