제출 #1015583

#제출 시각아이디문제언어결과실행 시간메모리
1015583Muhammet선물상자 (IOI15_boxes)C++17
50 / 100
51 ms18264 KiB
#include <bits/stdc++.h>
#include "boxes.h"
 
#define N 10005
#define ll long long
 
using namespace std;

ll p[N], s[N];

ll delivery(int n, int k1, int l1, int a[]) {
	sort(a,a+n);
	ll l = l1, k = k1;
	for(int i = 0; i < n; i++){
		p[i+1] = a[i] + p[max(i-k+1,0ll)];
	}
	for(int i = n-1; i >= 0; i--){
		s[i+1] = (l-a[i]) + s[min(i+k+1,(ll)(n+1))];
	}
	ll ans = LLONG_MAX;
	for(ll i = 0; i <= n; i++){
		for(ll j = i + 1; j <= n+1; j++){
			ans = min(ans,2*(p[i] + s[j]) + ((j-i-2+k)/k)*(l));
		}
	}
	return ans;
}
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