Submission #149914

#	Time	Username	Problem	Language	Result	Execution time	Memory
149914		Little Piplup (#200)	Bulb Game (FXCUP4_bulb)	C++17	36 / 100	1080 ms	7440 KiB

bulb

#include "bulb.h"
int n;
std::vector <int> Left, Right;
int check_which_bulb(std::vector <bool> &bt)
{
	int ans = 0;
	while(ans >= 0)
	{
		if (bt[ans])
			ans = Right[ans];
		else ans = Left[ans];
	}
	return ans;
}

bool redhub(std::vector <bool> bt)
{
	for (int i = 0; i<n; i++)
	{
		if (bt[i])
			continue;
		else
		{
			bt[i] = true;
			int u = check_which_bulb(bt);
			if (u == -2)
				return false;
			bt[i] = false;
		}
	}
	return true;
}
int FindWinner(int T, std::vector<int> L, std::vector<int> R)
{
	Left = L, Right = R;
	int N = L.size();
	n = N;
	std::vector <bool> on (N, false);
	int start = check_which_bulb(on);
	//printf("%d\n", start);
	if (start == -2)
		return 0;
	for (int i = 0; i<N; i++)
	{
		on[i] = true;
		if (redhub(on))
		{
			//printf("Redhub found %d\n",i);
			return 1;
		}
		on[i] = false;
	}
	return 0;
}

• Subtask 1: 11 / 11
• Subtask 2: 25 / 25
• Subtask 3: 0 / 64