oj.uz

답안 #887638

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
887638 2023-12-14T22:03:34 Z TAhmed33 Jail (JOI22_jail) C++
0 / 100
 623 ms 1048576 KB 
#include <bits/stdc++.h>
using namespace std;
int n, m;
vector <int> adj[251];
vector <int> g;
bool dfs (int pos, int par, int c) {
	if (pos == c) {
		g.push_back(pos);
		return 1;
	}
	bool f = 0;
	for (auto j : adj[pos]) {
		if (j == par) continue;
		f |= dfs(j, pos, c);
	}
	if (f) g.push_back(pos);
	return f;
}
int main () {
	int t = 1;
	cin >> t;
	while (t--) {
		cin >> n;
		for (int i = 1; i <= n; i++) adj[i].clear();
		for (int i = 1; i < n; i++) {
			int a, b;
			cin >> a >> b;
			adj[a].push_back(b);
			adj[b].push_back(a);
		}
		cin >> m;
		int x, y;
		cin >> x >> y;
		dfs(x, -1, y);
		auto f = g;
		g.clear();
		cin >> x >> y;
		dfs(x, -1, y);
		auto e = g;
		g.clear();
		int cnt = 0;
		bool flag = 0;
		for (auto i : f) flag |= i == e[0];
		cnt += flag;
		flag = 0;
		for (auto i : e) flag |= i == f[0];
		cnt += flag;
		cout << (cnt <= 1 ? "Yes\n" : "No\n");
	}
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Runtime error 623 ms 1048576 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 2 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 2 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 2 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 2 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Runtime error 623 ms 1048576 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -