제출 #1278988

#제출 시각아이디문제언어결과실행 시간메모리
1278988coderg300711선물상자 (IOI15_boxes)C++20
100 / 100
344 ms213716 KiB
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int maxn=2e7;
ll l[maxn],r[maxn];
long long delivery(int n,int k,int m,int p[]){
    for(int i=1;i<=n;i++)l[i]=l[max(0,i-k)]+min(p[i-1]*2,m);
    reverse(p,p+n);
    for(int i=1;i<=n;i++)r[i]=r[max(0,i-k)]+min((m-p[i-1])*2,m);
    ll rs=1e18;
    for(int i=0;i<=n;i++)rs=min(rs,l[i]+r[n-i]);
    return rs;
}
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