237152026-01-28 09:08:51PappMatyasBizonyításcpp17Time limit exceeded 25/501.1s8612 KiB
#include <iostream>
#include <vector>

using namespace std;

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

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

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

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

	int n, q;
	cin >> n >> q;

	vector<string> ans;
	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);
			ans.push_back(Connects(x, y) ? "IGEN" : "NEM");
		}
		else
		{
			v[x].push_back(y);
		}
	}

	for (string k : ans)
	{
		cout << k << "\n";
	}
}
SubtaskSumTestVerdictTimeMemory
subtask10/0
1Accepted1ms316 KiB
2Accepted984ms5076 KiB
subtask210/10
3Accepted2ms512 KiB
4Accepted14ms820 KiB
5Accepted150ms1508 KiB
6Accepted68ms1164 KiB
7Accepted105ms1524 KiB
8Accepted1ms316 KiB
9Accepted1ms316 KiB
10Accepted17ms820 KiB
11Accepted79ms1528 KiB
12Accepted116ms992 KiB
subtask315/15
13Accepted1ms316 KiB
14Accepted2ms316 KiB
15Accepted1ms316 KiB
16Accepted1ms512 KiB
17Accepted1ms316 KiB
18Accepted1ms316 KiB
19Accepted1ms316 KiB
20Accepted1ms316 KiB
21Accepted1ms356 KiB
22Accepted1ms316 KiB
23Accepted1ms316 KiB
24Accepted1ms316 KiB
25Accepted1ms324 KiB
26Accepted1ms316 KiB
27Accepted1ms316 KiB
28Accepted1ms652 KiB
29Accepted1ms316 KiB
30Accepted1ms316 KiB
31Accepted1ms316 KiB
32Accepted1ms316 KiB
33Accepted1ms316 KiB
34Accepted1ms316 KiB
35Accepted1ms316 KiB
36Accepted1ms316 KiB
37Accepted1ms316 KiB
38Accepted1ms316 KiB
subtask40/25
39Accepted1ms316 KiB
40Accepted986ms5152 KiB
41Accepted2ms512 KiB
42Accepted14ms820 KiB
43Accepted150ms1508 KiB
44Accepted68ms1164 KiB
45Accepted105ms1524 KiB
46Accepted1ms316 KiB
47Accepted1ms316 KiB
48Accepted17ms820 KiB
49Accepted79ms1528 KiB
50Accepted116ms992 KiB
51Accepted2ms316 KiB
52Accepted1ms316 KiB
53Accepted1ms512 KiB
54Accepted1ms316 KiB
55Accepted1ms316 KiB
56Accepted1ms316 KiB
57Accepted1ms316 KiB
58Accepted1ms356 KiB
59Accepted1ms316 KiB
60Accepted1ms316 KiB
61Accepted1ms316 KiB
62Accepted1ms324 KiB
63Accepted1ms316 KiB
64Accepted1ms316 KiB
65Accepted1ms652 KiB
66Accepted1ms316 KiB
67Accepted1ms316 KiB
68Accepted1ms316 KiB
69Accepted1ms316 KiB
70Accepted1ms316 KiB
71Accepted1ms316 KiB
72Accepted1ms316 KiB
73Accepted1ms316 KiB
74Accepted1ms316 KiB
75Accepted1ms316 KiB
76Accepted85ms4432 KiB
77Accepted35ms772 KiB
78Accepted797ms4872 KiB
79Accepted35ms824 KiB
80Accepted467ms4796 KiB
81Accepted126ms2732 KiB
82Accepted150ms2500 KiB
83Accepted75ms1280 KiB
84Accepted196ms2732 KiB
85Accepted412ms2800 KiB
86Accepted280ms4524 KiB
87Accepted453ms5000 KiB
88Accepted101ms1540 KiB
89Accepted101ms1528 KiB
90Accepted79ms8584 KiB
91Accepted423ms3224 KiB
92Accepted79ms8612 KiB
93Accepted388ms3144 KiB
94Accepted78ms8556 KiB
95Time limit exceeded1.083s900 KiB
96Time limit exceeded1.088s1192 KiB
97Time limit exceeded1.1s1096 KiB
98Time limit exceeded1.08s1208 KiB
99Time limit exceeded1.08s772 KiB
100Time limit exceeded1.075s2728 KiB
101Time limit exceeded1.1s2784 KiB
102Time limit exceeded1.072s2724 KiB
103Time limit exceeded1.085s2724 KiB
104Time limit exceeded1.08s2648 KiB