237122026-01-28 09:04:57PappMatyasBizonyításcpp17Time limit exceeded 25/501.09s1788 KiB
#include <iostream>
#include <vector>

using namespace std;

vector<vector<int>> v;
vector<bool> done;

int k;

static bool Connects(int x)
{
	if (done[x])
	{
		return false;
	}
	if (x == k)
	{
		return true;
	}

	done[x] = true;
	int s = v[x].size();
	for (int i = 0; i < s; i++)
	{
		if (Connects(v[x][i]))
		{
			return true;
		}
	}
	return false;
}

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	int n, q;
	cin >> n >> q;
	
	done = vector<bool>(n);

	for (int i = 0; i < n; i++)
	{
		v.push_back(vector<int>{});
	}

	for (int i = 0; i < q; i++)
	{
		int t, x, y;
		cin >> t >> x >> y;

		x--; y--;

		if (t == 2)
		{
			fill(done.begin(), done.end(), false);
			k = y;
			cout << (Connects(x) ? "IGEN" : "NEM") << "\n";
		}
		else
		{
			v[x].push_back(y);
		}
	}
}
SubtaskSumTestVerdictTimeMemory
subtask10/0
1Accepted1ms316 KiB
2Time limit exceeded1.026s1604 KiB
subtask210/10
3Accepted2ms316 KiB
4Accepted14ms316 KiB
5Accepted155ms564 KiB
6Accepted70ms568 KiB
7Accepted108ms500 KiB
8Accepted1ms316 KiB
9Accepted1ms316 KiB
10Accepted17ms316 KiB
11Accepted82ms564 KiB
12Accepted119ms532 KiB
subtask315/15
13Accepted1ms316 KiB
14Accepted2ms316 KiB
15Accepted1ms316 KiB
16Accepted2ms620 KiB
17Accepted1ms316 KiB
18Accepted1ms316 KiB
19Accepted1ms316 KiB
20Accepted1ms316 KiB
21Accepted1ms316 KiB
22Accepted1ms316 KiB
23Accepted1ms316 KiB
24Accepted1ms332 KiB
25Accepted1ms316 KiB
26Accepted1ms316 KiB
27Accepted1ms508 KiB
28Accepted1ms316 KiB
29Accepted2ms536 KiB
30Accepted1ms316 KiB
31Accepted1ms316 KiB
32Accepted1ms332 KiB
33Accepted1ms316 KiB
34Accepted1ms316 KiB
35Accepted1ms316 KiB
36Accepted1ms508 KiB
37Accepted1ms316 KiB
38Accepted1ms316 KiB
subtask40/25
39Accepted1ms316 KiB
40Time limit exceeded1.026s1788 KiB
41Accepted2ms316 KiB
42Accepted14ms316 KiB
43Accepted155ms564 KiB
44Accepted70ms568 KiB
45Accepted108ms500 KiB
46Accepted1ms316 KiB
47Accepted1ms316 KiB
48Accepted17ms316 KiB
49Accepted82ms564 KiB
50Accepted119ms532 KiB
51Accepted2ms316 KiB
52Accepted1ms316 KiB
53Accepted2ms620 KiB
54Accepted1ms316 KiB
55Accepted1ms316 KiB
56Accepted1ms316 KiB
57Accepted1ms316 KiB
58Accepted1ms316 KiB
59Accepted1ms316 KiB
60Accepted1ms316 KiB
61Accepted1ms332 KiB
62Accepted1ms316 KiB
63Accepted1ms316 KiB
64Accepted1ms508 KiB
65Accepted1ms316 KiB
66Accepted2ms536 KiB
67Accepted1ms316 KiB
68Accepted1ms316 KiB
69Accepted1ms332 KiB
70Accepted1ms316 KiB
71Accepted1ms316 KiB
72Accepted1ms316 KiB
73Accepted1ms508 KiB
74Accepted1ms316 KiB
75Accepted1ms316 KiB
76Accepted82ms644 KiB
77Accepted35ms464 KiB
78Accepted834ms1304 KiB
79Accepted35ms316 KiB
80Accepted481ms1176 KiB
81Accepted128ms820 KiB
82Accepted153ms564 KiB
83Accepted78ms816 KiB
84Accepted204ms816 KiB
85Accepted428ms1076 KiB
86Accepted287ms1076 KiB
87Accepted467ms1076 KiB
88Accepted104ms564 KiB
89Accepted104ms564 KiB
90Accepted63ms1076 KiB
91Accepted448ms1332 KiB
92Accepted64ms1076 KiB
93Accepted411ms1236 KiB
94Accepted63ms1092 KiB
95Time limit exceeded1.09s564 KiB
96Time limit exceeded1.08s820 KiB
97Time limit exceeded1.075s1076 KiB
98Time limit exceeded1.082s568 KiB
99Time limit exceeded1.085s564 KiB
100Time limit exceeded1.075s756 KiB
101Time limit exceeded1.077s564 KiB
102Time limit exceeded1.085s652 KiB
103Time limit exceeded1.077s632 KiB
104Time limit exceeded1.088s564 KiB