Submission #884868

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
884868	2023-12-08T15:12:25 Z	MinaRagy06	Jail (JOI22_jail)	C++17	5 / 100	41 ms	6608 KB

jail

#include <bits/stdc++.h>
using namespace std;
#define ll long long

int main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	int t;
	cin >> t;
	while (t--) {
		int n;
		cin >> n;
		for (int i = 1, u, v; i < n; i++) {
			cin >> u >> v;
			u--, v--;
		}
		int m;
		cin >> m;
		int st[n]{}, en[n]{}, st2[n]{}, en2[n]{};
		vector<array<int, 2>> v;
		for (int i = 0; i < m; i++) {
			int s, e;
			cin >> s >> e;
			s--, e--;
			v.push_back({min(s, e), max(s, e)});
			if (s < e) {
				st[s]++;
				en[e]++;
			} else {
				st2[s]++;
				en2[e]++;
			}
		}
		bool ok = 1;
		sort(v.begin(), v.end());
		int mn = 1e9;
		for (int i = v.size() - 1; i >= 0; i--) {
			if (mn < v[i][1]) {
				ok = 0;
			}
			mn = min(mn, v[i][1]);
		}
		int cnt[n]{}, c = 0;
		for (int i = 0; i < n; i++) {
			c += st[i];
			if (c) {
				cnt[i]++;
			}
			c -= en[i];
		}
		c = 0;
		for (int i = n - 1; i >= 0; i--) {
			c += st2[i];
			if (c && cnt[i]) {
				ok = 0;
			}
			c -= en2[i];
		}
		cout << (ok? "Yes\n" : "No\n");
	}
	return 0;
}

Subtask #1

5.0 / 5.0

#	Verdict	Execution time	Memory	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	Correct	5 ms	600 KB	Output is correct
5	Correct	11 ms	860 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	14 ms	1116 KB	Output is correct
10	Correct	19 ms	3676 KB	Output is correct
11	Correct	3 ms	604 KB	Output is correct
12	Correct	15 ms	1236 KB	Output is correct
13	Correct	22 ms	4432 KB	Output is correct
14	Correct	23 ms	5164 KB	Output is correct
15	Correct	25 ms	5296 KB	Output is correct
16	Correct	41 ms	6608 KB	Output is correct
17	Correct	24 ms	5308 KB	Output is correct
18	Correct	32 ms	6608 KB	Output is correct
19	Correct	24 ms	5300 KB	Output is correct
20	Correct	24 ms	5328 KB	Output is correct
21	Correct	24 ms	5332 KB	Output is correct
22	Correct	24 ms	5408 KB	Output is correct

Subtask #2

0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Incorrect	1 ms	472 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #3

0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Incorrect	1 ms	472 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #4

0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Incorrect	1 ms	472 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #5

0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Incorrect	1 ms	472 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #6

0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	3 ms	348 KB	Output is correct
6	Incorrect	1 ms	348 KB	Output isn't correct
7	Halted	0 ms	0 KB	-

Subtask #7

0 / 23.0

#	Verdict	Execution time	Memory	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	Correct	5 ms	600 KB	Output is correct
5	Correct	11 ms	860 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	14 ms	1116 KB	Output is correct
10	Correct	19 ms	3676 KB	Output is correct
11	Correct	3 ms	604 KB	Output is correct
12	Correct	15 ms	1236 KB	Output is correct
13	Correct	22 ms	4432 KB	Output is correct
14	Correct	23 ms	5164 KB	Output is correct
15	Correct	25 ms	5296 KB	Output is correct
16	Correct	41 ms	6608 KB	Output is correct
17	Correct	24 ms	5308 KB	Output is correct
18	Correct	32 ms	6608 KB	Output is correct
19	Correct	24 ms	5300 KB	Output is correct
20	Correct	24 ms	5328 KB	Output is correct
21	Correct	24 ms	5332 KB	Output is correct
22	Correct	24 ms	5408 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Incorrect	1 ms	472 KB	Output isn't correct
27	Halted	0 ms	0 KB	-