제출 #832355

#제출 시각아이디문제언어결과실행 시간메모리
832355ttamx선물상자 (IOI15_boxes)C++14
10 / 100
1 ms212 KiB
#include "boxes.h"
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

ll delivery(int N, int K, int L, int p[]) {
    vector<ll> dpl(N+2),dpr(N+2);
    for(int i=1;i<=N;i++)dpl[i]=dpl[max(0,i-K)]+2ll*p[i-1];
    for(int i=N;i>=1;i--)dpr[i]=dpr[min(N+1,i+K)]+2ll*(L-p[i-1]);
    ll ans=LLONG_MAX;
    for(int i=0;i<=N;i++)ans=min(ans,dpl[i]+dpr[i+1]);
    return ans;
}
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