제출 #114559

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
114559		ly20	Roller Coaster Railroad (IOI16_railroad)	C++14	11 / 100	2051 ms	524288 KiB

railroad

#include<bits/stdc++.h>
using namespace std;
#include "railroad.h"
int mk[20];
long long resp=1123456789123456789;
void bk(int n,int k,vector<int> e,vector<int> s,int ant,long long at)
{
	if(k==n)resp=min(resp,at);
	for(int i=0;i<n;i++)
	{
		if(mk[i]==0)
		{
			long long vl=0;
			if(k>0)
			{
				vl=max(s[ant]-e[i],0);
			}	
			mk[i]=1;
			bk(n,k+1,e,s,i,at+vl);
			mk[i]=0;
		}
	}
}
long long plan_roller_coaster(vector<int> e,vector<int> s)
{
	int n=e.size();
	bk(n,0,e,s,-1,0);
	return resp;
}
/*int main()
{
	int n;
	scanf("%d",&n);
	vector<int> e,s;
	for(int i=0;i<n;i++)
	{
		int a,b;
		scanf("%d %d",&a,&b);
		e.push_back(a);s.push_back(b);
	}
	printf("%lld\n",plan_roller_coaster(e,s));
	return 0;
}*/

• Subtask 1: 11 / 11
• Subtask 2: 0 / 23
• Subtask 3: 0 / 30
• Subtask 4: 0 / 36