제출 #183854

#제출 시각아이디문제언어결과실행 시간메모리
183854mohammad선물상자 (IOI15_boxes)C++14
10 / 100
6 ms376 KiB
/*
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*/
 
#include<bits/stdc++.h>
#include "boxes.h"
using namespace std;
 
typedef long long ll ;
const ll oo = 1e13 ;
const double PI = acos(-1) ;
const ll M = 1e9 + 7  ;

ll dp[10000001] , a[10000001] , ans = 1e18;

ll delivery(int N, int K, int L, int p[]){
	for(int i = 0 ; i < N ; ++i){
		if(i + 1 >= K) dp[i] = p[i] * 2 + (i + 1 == K ? 0 : dp[i - K]);
		else dp[i] = p[i] * 2;
	}
	for(int i = N - 1; i >= 0 ; --i){
		if(N - i >= K) a[i] = (L - p[i]) * 2 + a[i + K];
		else a[i] = p[i] * 2;
	}
	for(int i = 0 ; i < N - 1 ; ++i) ans = min(dp[i] + a[i + 1] , ans);
	return min(ans , min(dp[N - 1] , a[0]));
}
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