Submission #719348

#TimeUsernameProblemLanguageResultExecution timeMemory
719348Ahmed57Friend (IOI14_friend)C++14
100 / 100
26 ms3136 KiB
#include <bits/stdc++.h> using namespace std; const int mxN=1e5; int dp[mxN][2]; int findSample(int n, int c[], int h[], int p[]) { for(int i=0; i<n; ++i) dp[i][1]=c[i]; for(int i=n-1; i; --i) { if(p[i]==0) { dp[h[i]][0]+=dp[i][1]; dp[h[i]][1]+=dp[i][0]; } else if(p[i]==1) { dp[h[i]][0]+=dp[i][0]; dp[h[i]][1]+=dp[i][1]; } else { dp[h[i]][1]=max(dp[h[i]][0]+dp[i][1], dp[h[i]][1]+dp[i][0]); dp[h[i]][0]+=dp[i][0]; } dp[h[i]][1]=max(dp[h[i]][0], dp[h[i]][1]); } return max(dp[0][0], dp[0][1]); }
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