제출 #928541

#제출 시각아이디문제언어결과실행 시간메모리
928541AlphaMale06Boxes with souvenirs (IOI15_boxes)C++17
100 / 100
668 ms293804 KiB
#include <bits/stdc++.h>
using namespace std;
long long dp[10000003], rdp[10000003];
long long delivery(int n, int k, int l, int a[]) {
    sort(a, a+n);
    for(int i=1; i<= n; i++)dp[i]=dp[i-min(i, k)]+min(l, 2*a[i-1]);
    for(int i=n; i>=1; i--)rdp[i]=rdp[i+min(n+1-i, k)]+min(l, 2*(l-a[i-1]));
    long long ans=min(rdp[1], dp[n]);
    for(int i=1; i<n; i++)ans=min(ans, dp[i]+rdp[i+1]);
    return ans;
}
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