제출 #1215688

#제출 시각아이디문제언어결과실행 시간메모리
1215688byunjaewoo선물상자 (IOI15_boxes)C++20
100 / 100
346 ms196148 KiB
#include "boxes.h" #include<bits/stdc++.h> using namespace std; using ll=long long; ll delivery(int n,int k,int L,int p[]){ ll ans=1e18, l[n+1], r[n+1]; l[0]=r[0]=0; for(int i=1; i<=n; i++) r[i]=r[max(i-k,0)]+p[i-1]*2, l[i]=l[max(i-k,0)]+(L-p[n-i])*2; for(int i=0; i<=n; i++) ans=min(ans, l[i]+min(r[n-i], r[max(n-i-k,0)]+L)); return ans; }
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