Submission #789839

#	Time	Username	Problem	Language	Result	Execution time	Memory
789839		Shithila	Roller Coaster Railroad (IOI16_railroad)	C++14	0 / 100	42 ms	11172 KiB

railroad

#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n = (int) s.size();
   	vector<vector<long long>> dp((1<<n), vector<long long>(n,1e16));
   	long long kk=1;
   	int kkpos=0;
   	while(kkpos<n)
   	{
   		dp[kk][kkpos]=0;
   		kk=kk*2;
   		kkpos++;
	}
	for(int i=0;i<(1<<n);i++)
	{
		for(int j=0;j<n;j++)
		{
			if(((1<<j) & i)==0)
			{
				for(int k=0;k<n;k++)
				{
					if(((1<<k) & i)!=0)
					{
						long long distance=max((t[k]-s[j]),0);
						dp[i | (1<<j)][j]=min(dp[i | (1<<j)][j],(dp[i][k] + distance));
					}
				}
			}
		}
	}
	long long minnimum=1e16;
	for(int j=0;j<n;j++)
	{
		minnimum=min(minnimum,dp[1<<n][j]);
	}
	return minnimum;
}

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