Submission #744597

#TimeUsernameProblemLanguageResultExecution timeMemory
744597vjudge1Friend (IOI14_friend)C++11
100 / 100
25 ms3376 KiB
#include <bits/stdc++.h> #include "friend.h" using namespace std; const int MAX=1e5+10; const int INF=(1<<30); int X[MAX], Y[MAX]; int findSample(int n, int confidence[], int host[], int protocol[]) { for (int i = 0; i < n; i++) { X[i]=confidence[i]; } for (int i=n-1; i>=1; i--) { if (protocol[i]==0) { X[host[i]]+=Y[i]; Y[host[i]]=max(Y[host[i]]+X[i],Y[host[i]]+Y[i]); } if (protocol[i]==1) { X[host[i]]=max({X[host[i]]+X[i],X[host[i]]+Y[i],Y[host[i]]+X[i]}); Y[host[i]]+=Y[i]; } if (protocol[i]==2) { X[host[i]]=max(X[host[i]]+Y[i],Y[host[i]]+X[i]); Y[host[i]]+=Y[i]; } } return max(X[0],Y[0]); }
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