Submission #1075514

#TimeUsernameProblemLanguageResultExecution timeMemory
1075514Muhammad_AneeqCatfish Farm (IOI22_fish)C++17
9 / 100
59 ms7276 KiB
#include <vector> using namespace std; long long max_weights(int N, int M, vector<int> X, vector<int> Y,vector<int> W) { bool subt1=1,subt2=1,subt3=1; for (int i=0;i<M;i++) { if (X[i]%2) subt1=0; if (X[i]>1) subt2=0; if (Y[i]!=0) subt3=0; } if (subt1) { long long sm=0; for (int i=0;i<M;i++) sm+=W[i]; return sm; } if (subt2) { long long sm[N]={}; long long val[N][2]={}; for (int i=0;i<M;i++) val[Y[i]][X[i]]=W[i]; sm[0]=val[0][1]; for (int i=1;i<N;i++) sm[i]=sm[i-1]+val[i][1]; long long ans=sm[N-1]; long long x=0; for (int i=0;i<N;i++) { x+=val[i][0]; if (N>2) ans=max(ans,x+sm[N-1]-sm[i]); } ans=max(ans,x); return ans; } if (subt3) { long long dp[N][2]={}; int val[N]={}; for (int i=0;i<M;i++) val[X[i]]=W[i]; dp[0][0]=0,dp[0][1]=val[0]; long long ans=0; for (int i=1;i<N;i++) { if (i>1) dp[i][0]=max(dp[i-2][0],dp[i-2][1])+val[i]; else dp[i][0]=val[i]; if (i<N-1) dp[i][1]=dp[i-1][0]+val[i]; ans=max(ans,max(dp[i][0],dp[i][1])); } return ans; } return 0; }
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