제출 #699133

#제출 시각아이디문제언어결과실행 시간메모리
699133epicci23Boxes with souvenirs (IOI15_boxes)C++17
0 / 100
0 ms212 KiB
#include "boxes.h" #include "bits/stdc++.h" using namespace std; long long delivery(int N, int K, int L, int p[]) { long long dp[N+1],dp2[N+1]; for(int i=1;i<=K;i++) dp[i]=2*min(L-p[i],p[i]); for(int i=K+1;i<=N;i++) dp[i]=dp[i-K] + min(p[i]+min(p[i],L-p[i]),L-p[i-K+1]+min(L-p[i-K+1],p[i-K+1])); for(int i=N;i>=N-K+1;i--) dp2[i]=2*min(L-p[i],p[i]); for(int i=N-K;i>=1;i--) dp2[i]=dp2[i+K] + min(p[i+K-1]+min(L-p[i+K-1],p[i+K-1]),L-p[i]+min(L-p[i],p[i])); long long ans=min(dp2[1],dp[N]); for(int i=1;i<N;i++) ans=min(ans,dp[i]+dp2[i+1]); return ans; }
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