Submission #1217005

#TimeUsernameProblemLanguageResultExecution timeMemory
1217005matereBoxes with souvenirs (IOI15_boxes)C++20
0 / 100
1 ms324 KiB
#include "boxes.h" #include<bits/stdc++.h> #define ll long long using namespace std; ll a[10000005],dp1[10000005],dp2[10000005],n,k,l; ll delivery(int nn,int kk,int lll,int b[]){ n=nn,k=kk,l=lll; for(ll i=1;i<=n;i++){ a[i]=b[i-1]; dp1[i]=dp1[a[max(0ll,i-k)]]+a[i]+min(a[i],(l-a[i])); // cout<<dp1[i]<<' '; } // cout<<endl; for(ll i=n;i>=1;i--){ dp2[i]=dp2[a[min(n+1,i+k)]]+(l-a[i])+min(a[i],(n-a[i])); // cout<<dp2[i]<<' '; } ll ans=0; for(ll i=1;i<=n;i++){ ans=max(ans,dp1[i]+dp2[i+1]); } return ans; }
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