제출 #248888

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
248888		kshitij_sodani	선물상자 (IOI15_boxes)	C++14	10 / 100	1 ms	384 KiB

boxes

#include <bits/stdc++.h>
using namespace std;
typedef long long llo;
#define mp make_pair
#define pb push_back
#define a first 
#define b second
//#include "boxes.h"
llo dp[10000001];
long long delivery(int n, int k, int ll, int it[]) {
	sort(it,it+n);
	for(int i=0;i<n;i++){
		dp[i]=-1;
	}
	llo l=ll;
	deque<pair<llo,int>> aa;
	deque<pair<llo,int>> bb;

	dp[0]=min((llo)(it[0]*2),l*2-(llo)it[0]*2);

	for(int i=1;i<n;i++){
		llo cc=dp[i-1]+(l-it[i])*2;
		while(aa.size()){
			if(aa.back().a>=cc){
				aa.pop_back();
			}
			else{
				break;
			}
		}
		aa.pb({cc,i});
		cc=dp[i-1];
		while(bb.size()){
			if(bb.back().a>=cc){
				bb.pop_back();
			}
			else{
				break;
			}
		}
		bb.pb({cc,i});
		while(aa.size()){
			if(aa.front().b<i-k){
				aa.pop_front();
				continue;
			}
			else{
				break;
			}
		}
		while(bb.size()){
			if(bb.front().b<i-k){
				bb.pop_front();
				continue;
			}
			else{
				break;
			}
		}
		dp[i]=bb.front().a+min(l,(llo)it[i]*2);
		dp[i]=min(dp[i],aa.front().a);
		if(i<k){
			dp[i]=min(dp[i],(llo)(it[i]*2));
			dp[i]=min(dp[i],(llo)(l));
			dp[i]=min(dp[i],(llo)(l*2-it[0]*2));
		}
		/*for(int j=max(0,i-k+1);j<=i;j++){
			llo cost=l;
			cost=min(cost,it[i]*(llo)2);
			cost=min(cost,(l-it[j])*(llo)2);
			if(j>0){
				cost+=dp[j-1];
			}
			if(dp[i]==-1){
				dp[i]=cost;
			}
			dp[i]=min(dp[i],cost);
		}*/
	}



    return dp[n-1];
}


/*int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);


	return 0;
}*/

/*
g++  -o aa -O2 box.cpp grader.cpp -std=c++14
*/

• Subtask 1: 0 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30