Submission #134669

#	Time	Username	Problem	Language	Result	Execution time	Memory
134669		Mahdi_Jfri	Shortcut (IOI16_shortcut)	C++14	23 / 100	2057 ms	504 KiB

shortcut

#include "shortcut.h"
#include<bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back

const int maxn = 5e3 + 20;

ll s[maxn];
int d[maxn];

ll fn(int a , int b)
{
	if(a > b)
		swap(a , b);

	return s[b] - s[a];
}

long long find_shortcut(int n, std::vector<int> L, std::vector<int> D, int c)
{
	for(int i = 0; i < n; i++)
	{
		d[i] = D[i];
		if(i)
			s[i] = L[i - 1] + s[i - 1];
	}

	ll ans = 1e18;
	for(int l = 0; l < n; l++)
		for(int r = l; r < n; r++)
		{
			ll res = 0;
			for(int a = 0; a < n; a++)
				for(int b = a + 1; b < n; b++)
				{
					ll dis = fn(a , b);
					dis = min(dis , fn(a , l) + c + fn(r , b));
					dis = min(dis , fn(a , r) + c + fn(l , b));

					dis += d[a] + d[b];
					res = max(res , dis);
				}

			ans = min(ans , res);
		}

	return ans;
}

• Subtask 1: 9 / 9
• Subtask 2: 14 / 14
• Subtask 3: 0 / 8
• Subtask 4: 0 / 7
• Subtask 5: 0 / 33
• Subtask 6: 0 / 22
• Subtask 7: 0 / 4
• Subtask 8: 0 / 3