제출 #1264296

#제출 시각아이디문제언어결과실행 시간메모리
1264296liangjeremy선물상자 (IOI15_boxes)C++20
0 / 100
0 ms324 KiB
#include<bits/stdc++.h> #define fi first #define se second using namespace std; using db=double; using ll=int64_t; using sll=__int128; using lb=long double; long long delivery(int n, int k, int l, int a[]){ #define int long long vector<int>v(n+1); vector<int>dpl(n+1); vector<int>dpr(n+2); for(int i=0; i<n; i++)v[i+1]=a[i]; for(int i=1; i<=n; i++){ dpl[i]=v[i]+dpl[max(0ll,i-k)]; } for(int i=n; i>=1; i--){ dpr[i]=l-v[i]+dpr[min((int)n+1,i+k)]; } int ans=1e18; for(int i=0; i<=n; i++){ ans=min(ans,dpl[i]+dpr[i+1]); } for(int i=0; i+k<=n; i++){ ans=min(ans,2*dpl[i]+2*dpr[i+k+1]+l); } return ans; }
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