oj.uz

Submission #887644

# Submission time Handle Problem Language Result Execution time Memory
887644 2023-12-14T23:13:37 Z TAhmed33 Jail (JOI22_jail) C++
61 / 100
 3308 ms 1048576 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 120025;
vector <int> adj[MAXN];
vector <int> adj2[501];
int n, m;
int l[501], r[501], deg[501];
vector <int> dd[MAXN];
vector <int> ls[501];
bool dfs (int pos, int par, int c) {
	if (pos == r[c]) {
		dd[pos].push_back(c);
		ls[c].push_back(pos);
		return 1;
	}
	bool f = 0;
	for (auto i : adj[pos]) {
		if (i != par) {
			f |= dfs(i, pos, c);
		}
	}
	if (f) {
		dd[pos].push_back(c);
		ls[c].push_back(pos);
	}
	return f;
}
int main () {
	ios::sync_with_stdio(0); cin.tie(0);
	int t = 1; cin >> t;
	while (t--) {
		cin >> n;
		for (int i = 1; i <= n; i++) {
			adj[i].clear();
			dd[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;
		for (int i = 1; i <= m; i++) {
			deg[i] = 0; adj2[i].clear(); ls[i].clear();
		}
		for (int i = 1; i <= m; i++) {
			cin >> l[i] >> r[i];
			dfs(l[i], -1, i);
		}
		for (int i = 1; i <= n; i++) sort(dd[i].begin(), dd[i].end());
		bool flag3 = 0;
		for (int i = 1; i <= m; i++) {
			set <int> y;
			for (auto j : dd[l[i]]) y.insert(j);
			bool u2 = 0;
			for (auto j : dd[r[i]]) u2 |= y.count(j) && j != i;
			flag3 |= u2;
			u2 = 0;
			for (auto j : dd[l[i]]) if (j != i) u2 |= binary_search(dd[l[j]].begin(), dd[l[j]].end(), i);
			for (auto j : dd[r[i]]) if (j != i) u2 |= binary_search(dd[r[j]].begin(), dd[r[j]].end(), i);
			flag3 |= u2;
		}
		if (flag3) {
			cout << "No\n";
			continue;	
		}
		for (int i = 1; i <= m; i++) sort(ls[i].begin(), ls[i].end());
		for (int i = 1; i <= m; i++) {
			for (int j = 1; j <= m; j++) {
				if (i == j) continue;
				bool flag = 0;
				flag |= binary_search(ls[i].begin(), ls[i].end(), l[j]);
				flag |= binary_search(ls[j].begin(), ls[j].end(), r[i]);
				if (flag) adj2[i].push_back(j);
			}
		}
		for (int i = 1; i <= m; i++) {
			for (auto j : adj2[i]) {
				deg[j]++;
			}
		}
		vector <int> d;
		queue <int> cur;
		for (int i = 1; i <= m; i++) {
			if (deg[i] == 0) {
				cur.push(i);
			}
		}
		while (!cur.empty()) {
			auto j = cur.front();
			cur.pop();
			d.push_back(j);
			for (auto z : adj2[j]) {
				deg[z]--;
				if (deg[z] == 0) cur.push(z);
			}
		}
		if ((int)d.size() != m) {
			cout << "No\n";
		} else {
			cout << "Yes\n";
		}
	}
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5980 KB Output is correct
2 Correct 1 ms 5980 KB Output is correct
3 Correct 2 ms 5980 KB Output is correct
4 Correct 8 ms 5980 KB Output is correct
5 Correct 14 ms 5980 KB Output is correct
6 Correct 3 ms 5980 KB Output is correct
7 Correct 2 ms 5980 KB Output is correct
8 Correct 8 ms 6312 KB Output is correct
9 Correct 550 ms 33428 KB Output is correct
10 Correct 3308 ms 494500 KB Output is correct
11 Correct 7 ms 5980 KB Output is correct
12 Correct 104 ms 6144 KB Output is correct
13 Runtime error 30 ms 19500 KB Execution killed with signal 6
14 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5980 KB Output is correct
2 Correct 2 ms 5980 KB Output is correct
3 Correct 2 ms 5976 KB Output is correct
4 Correct 2 ms 5976 KB Output is correct
5 Correct 2 ms 5976 KB Output is correct
6 Correct 2 ms 5976 KB Output is correct
7 Correct 2 ms 5980 KB Output is correct
8 Correct 3 ms 5980 KB Output is correct
9 Correct 2 ms 5980 KB Output is correct
10 Correct 2 ms 5980 KB Output is correct
11 Correct 2 ms 5980 KB Output is correct
12 Correct 2 ms 5980 KB Output is correct
13 Correct 2 ms 5980 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5980 KB Output is correct
2 Correct 2 ms 5980 KB Output is correct
3 Correct 2 ms 5976 KB Output is correct
4 Correct 2 ms 5976 KB Output is correct
5 Correct 2 ms 5976 KB Output is correct
6 Correct 2 ms 5976 KB Output is correct
7 Correct 2 ms 5980 KB Output is correct
8 Correct 3 ms 5980 KB Output is correct
9 Correct 2 ms 5980 KB Output is correct
10 Correct 2 ms 5980 KB Output is correct
11 Correct 2 ms 5980 KB Output is correct
12 Correct 2 ms 5980 KB Output is correct
13 Correct 2 ms 5980 KB Output is correct
14 Correct 2 ms 5980 KB Output is correct
15 Correct 2 ms 5980 KB Output is correct
16 Correct 2 ms 6080 KB Output is correct
17 Correct 2 ms 5980 KB Output is correct
18 Correct 3 ms 5980 KB Output is correct
19 Correct 2 ms 5980 KB Output is correct
20 Correct 3 ms 5980 KB Output is correct
21 Correct 3 ms 5980 KB Output is correct
22 Correct 3 ms 5980 KB Output is correct
23 Correct 2 ms 5980 KB Output is correct
24 Correct 2 ms 5980 KB Output is correct
25 Correct 3 ms 5980 KB Output is correct
26 Correct 2 ms 5976 KB Output is correct
27 Correct 3 ms 5976 KB Output is correct
28 Correct 2 ms 5980 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5980 KB Output is correct
2 Correct 2 ms 5980 KB Output is correct
3 Correct 2 ms 5976 KB Output is correct
4 Correct 2 ms 5976 KB Output is correct
5 Correct 2 ms 5976 KB Output is correct
6 Correct 2 ms 5976 KB Output is correct
7 Correct 2 ms 5980 KB Output is correct
8 Correct 3 ms 5980 KB Output is correct
9 Correct 2 ms 5980 KB Output is correct
10 Correct 2 ms 5980 KB Output is correct
11 Correct 2 ms 5980 KB Output is correct
12 Correct 2 ms 5980 KB Output is correct
13 Correct 2 ms 5980 KB Output is correct
14 Correct 2 ms 5980 KB Output is correct
15 Correct 2 ms 5980 KB Output is correct
16 Correct 2 ms 6080 KB Output is correct
17 Correct 2 ms 5980 KB Output is correct
18 Correct 3 ms 5980 KB Output is correct
19 Correct 2 ms 5980 KB Output is correct
20 Correct 3 ms 5980 KB Output is correct
21 Correct 3 ms 5980 KB Output is correct
22 Correct 3 ms 5980 KB Output is correct
23 Correct 2 ms 5980 KB Output is correct
24 Correct 2 ms 5980 KB Output is correct
25 Correct 3 ms 5980 KB Output is correct
26 Correct 2 ms 5976 KB Output is correct
27 Correct 3 ms 5976 KB Output is correct
28 Correct 2 ms 5980 KB Output is correct
29 Correct 11 ms 6212 KB Output is correct
30 Correct 4 ms 5980 KB Output is correct
31 Correct 5 ms 6236 KB Output is correct
32 Correct 5 ms 6232 KB Output is correct
33 Correct 3 ms 5980 KB Output is correct
34 Correct 6 ms 5980 KB Output is correct
35 Correct 10 ms 6236 KB Output is correct
36 Correct 7 ms 5976 KB Output is correct
37 Correct 7 ms 5980 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5980 KB Output is correct
2 Correct 2 ms 5980 KB Output is correct
3 Correct 2 ms 5976 KB Output is correct
4 Correct 2 ms 5976 KB Output is correct
5 Correct 2 ms 5976 KB Output is correct
6 Correct 2 ms 5976 KB Output is correct
7 Correct 2 ms 5980 KB Output is correct
8 Correct 3 ms 5980 KB Output is correct
9 Correct 2 ms 5980 KB Output is correct
10 Correct 2 ms 5980 KB Output is correct
11 Correct 2 ms 5980 KB Output is correct
12 Correct 2 ms 5980 KB Output is correct
13 Correct 2 ms 5980 KB Output is correct
14 Correct 2 ms 5980 KB Output is correct
15 Correct 2 ms 5980 KB Output is correct
16 Correct 2 ms 6080 KB Output is correct
17 Correct 2 ms 5980 KB Output is correct
18 Correct 3 ms 5980 KB Output is correct
19 Correct 2 ms 5980 KB Output is correct
20 Correct 3 ms 5980 KB Output is correct
21 Correct 3 ms 5980 KB Output is correct
22 Correct 3 ms 5980 KB Output is correct
23 Correct 2 ms 5980 KB Output is correct
24 Correct 2 ms 5980 KB Output is correct
25 Correct 3 ms 5980 KB Output is correct
26 Correct 2 ms 5976 KB Output is correct
27 Correct 3 ms 5976 KB Output is correct
28 Correct 2 ms 5980 KB Output is correct
29 Correct 11 ms 6212 KB Output is correct
30 Correct 4 ms 5980 KB Output is correct
31 Correct 5 ms 6236 KB Output is correct
32 Correct 5 ms 6232 KB Output is correct
33 Correct 3 ms 5980 KB Output is correct
34 Correct 6 ms 5980 KB Output is correct
35 Correct 10 ms 6236 KB Output is correct
36 Correct 7 ms 5976 KB Output is correct
37 Correct 7 ms 5980 KB Output is correct
38 Correct 609 ms 34388 KB Output is correct
39 Correct 3268 ms 496076 KB Output is correct
40 Correct 744 ms 18188 KB Output is correct
41 Correct 683 ms 7912 KB Output is correct
42 Correct 378 ms 17492 KB Output is correct
43 Correct 43 ms 7512 KB Output is correct
44 Correct 105 ms 6492 KB Output is correct
45 Correct 1679 ms 12248 KB Output is correct
46 Correct 1736 ms 12468 KB Output is correct
47 Correct 1079 ms 103112 KB Output is correct
48 Correct 1103 ms 105552 KB Output is correct
49 Correct 1129 ms 16860 KB Output is correct
50 Correct 1213 ms 16968 KB Output is correct
51 Correct 182 ms 12380 KB Output is correct
52 Correct 196 ms 12560 KB Output is correct
53 Correct 124 ms 6720 KB Output is correct
54 Correct 1278 ms 11636 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5980 KB Output is correct
2 Correct 1 ms 5980 KB Output is correct
3 Correct 2 ms 5980 KB Output is correct
4 Correct 1 ms 5980 KB Output is correct
5 Correct 7 ms 6132 KB Output is correct
6 Correct 2 ms 5980 KB Output is correct
7 Correct 2 ms 5980 KB Output is correct
8 Correct 2 ms 5980 KB Output is correct
9 Correct 2 ms 5980 KB Output is correct
10 Correct 2 ms 5980 KB Output is correct
11 Correct 2 ms 6100 KB Output is correct
12 Correct 7 ms 5980 KB Output is correct
13 Correct 38 ms 6644 KB Output is correct
14 Correct 57 ms 6896 KB Output is correct
15 Correct 53 ms 6740 KB Output is correct
16 Runtime error 1160 ms 1048576 KB Execution killed with signal 9
17 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5980 KB Output is correct
2 Correct 1 ms 5980 KB Output is correct
3 Correct 2 ms 5980 KB Output is correct
4 Correct 8 ms 5980 KB Output is correct
5 Correct 14 ms 5980 KB Output is correct
6 Correct 3 ms 5980 KB Output is correct
7 Correct 2 ms 5980 KB Output is correct
8 Correct 8 ms 6312 KB Output is correct
9 Correct 550 ms 33428 KB Output is correct
10 Correct 3308 ms 494500 KB Output is correct
11 Correct 7 ms 5980 KB Output is correct
12 Correct 104 ms 6144 KB Output is correct
13 Runtime error 30 ms 19500 KB Execution killed with signal 6
14 Halted 0 ms 0 KB -