제출 #16530

#제출 시각아이디문제언어결과실행 시간메모리
16530gs13068선물상자 (IOI15_boxes)C++98
0 / 100
2 ms404 KiB
#include <algorithm>

long long L[11111111];
long long R[11111111];

long long delivery(int n,int k,int l,int a[])
{
	long long r=1e18;
    int i;
    for(i=1;i<=n;i++)
	{
		L[i]=std::min(a[i-1]<<1,l);
        if(i>k)L[i]+=L[i-k];
	}
    for(i=n-1;i>=0;i--)
	{
		R[i]=std::min((l-a[i])<<1,l);
		if(i+k<n)R[i]+=R[i+k];
	}
	for(i=0;i<n;i++)r=std::min(r,L[i]+R[i]);
	return r;
}
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