| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 994234 |
2024-06-07T09:33:18 Z |
vjudge1 |
Jail (JOI22_jail) |
C++17 |
|
5000 ms |
5988 KB |
#include <iostream>
#include <vector>
using namespace std;
int n, m, sz, c;
bool ans;
vector <vector <int>> g(2e5);
vector <int> to(2e5, 0);
vector <bool> del(2e5);
void reset() {
ans = true;
for (int i = 1; i <= n; i++) {
g[i].clear();
to[i] = 0;
del[i] = false;
}
}
int get_c(int x) {
if (del[x]) return 0;
del[x] = true;
int mx = 0, sum = 1;
for (int i : g[x]) {
}
return sum;
}
void cd(int x) {
sz = get_c(x);
get_c(x);
}
bool dfs(int x, int y) {
if (del[x] || to[x]) return false;
if (x == y) return true;
del[x] = true;
bool ret = false;
for (int i : g[x]) if (dfs(i, y)) ret = true;
del[x] = false;
return ret;
}
bool bt() {
bool kesz = true;
for (int i = 1; i <= n; i++) if (to[i] && to[i] != i) kesz = false;
if (kesz) return true;
for (int i = 1; i <= n; i++) {
if (!to[i] || to[i] == i) continue;
int a = to[i];
to[i] = 0;
bool jo = dfs(i, a);
to[i] = a;
if (!jo) continue;
swap(to[i], to[a]);
if (bt()) return true;
swap(to[i], to[a]);
}
return false;
}
void solve() {
cin >> n;
reset();
int a, b;
for (int i = 0; i < n - 1; i++) {
cin >> a >> b;
g[a].push_back(b);
g[b].push_back(a);
}
cin >> m;
for (int i = 0; i < m; i++) {
cin >> a >> b;
to[a] = b;
}
cout << (bt() ? "Yes\n" : "No\n");
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int t;
cin >> t;
while (t--) solve();
}
Compilation message
jail.cpp: In function 'int get_c(int)':
jail.cpp:24:11: warning: unused variable 'i' [-Wunused-variable]
24 | for (int i : g[x]) {
| ^
jail.cpp:23:6: warning: unused variable 'mx' [-Wunused-variable]
23 | int mx = 0, sum = 1;
| ^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 2 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 4 |
Correct |
8 ms |
5980 KB |
Output is correct |
| 5 |
Correct |
13 ms |
5988 KB |
Output is correct |
| 6 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 7 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 8 |
Execution timed out |
5051 ms |
5980 KB |
Time limit exceeded |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5736 KB |
Output is correct |
| 2 |
Correct |
2 ms |
5964 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 4 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 5 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 6 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 7 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 8 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 9 |
Correct |
2 ms |
5976 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 |
5724 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5736 KB |
Output is correct |
| 2 |
Correct |
2 ms |
5964 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 4 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 5 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 6 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 7 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 8 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 9 |
Correct |
2 ms |
5976 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 |
5724 KB |
Output is correct |
| 14 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 16 |
Correct |
4 ms |
5980 KB |
Output is correct |
| 17 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5724 KB |
Output is correct |
| 19 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 20 |
Correct |
4 ms |
5988 KB |
Output is correct |
| 21 |
Correct |
6 ms |
5980 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 23 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 24 |
Correct |
3 ms |
5976 KB |
Output is correct |
| 25 |
Correct |
9 ms |
5980 KB |
Output is correct |
| 26 |
Correct |
4 ms |
5980 KB |
Output is correct |
| 27 |
Correct |
6 ms |
5824 KB |
Output is correct |
| 28 |
Correct |
3 ms |
5972 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5736 KB |
Output is correct |
| 2 |
Correct |
2 ms |
5964 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 4 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 5 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 6 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 7 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 8 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 9 |
Correct |
2 ms |
5976 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 |
5724 KB |
Output is correct |
| 14 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 16 |
Correct |
4 ms |
5980 KB |
Output is correct |
| 17 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5724 KB |
Output is correct |
| 19 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 20 |
Correct |
4 ms |
5988 KB |
Output is correct |
| 21 |
Correct |
6 ms |
5980 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 23 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 24 |
Correct |
3 ms |
5976 KB |
Output is correct |
| 25 |
Correct |
9 ms |
5980 KB |
Output is correct |
| 26 |
Correct |
4 ms |
5980 KB |
Output is correct |
| 27 |
Correct |
6 ms |
5824 KB |
Output is correct |
| 28 |
Correct |
3 ms |
5972 KB |
Output is correct |
| 29 |
Execution timed out |
5020 ms |
5976 KB |
Time limit exceeded |
| 30 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5736 KB |
Output is correct |
| 2 |
Correct |
2 ms |
5964 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 4 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 5 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 6 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 7 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 8 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 9 |
Correct |
2 ms |
5976 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 |
5724 KB |
Output is correct |
| 14 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 16 |
Correct |
4 ms |
5980 KB |
Output is correct |
| 17 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5724 KB |
Output is correct |
| 19 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 20 |
Correct |
4 ms |
5988 KB |
Output is correct |
| 21 |
Correct |
6 ms |
5980 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 23 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 24 |
Correct |
3 ms |
5976 KB |
Output is correct |
| 25 |
Correct |
9 ms |
5980 KB |
Output is correct |
| 26 |
Correct |
4 ms |
5980 KB |
Output is correct |
| 27 |
Correct |
6 ms |
5824 KB |
Output is correct |
| 28 |
Correct |
3 ms |
5972 KB |
Output is correct |
| 29 |
Execution timed out |
5020 ms |
5976 KB |
Time limit exceeded |
| 30 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 2 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 4 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 5 |
Correct |
59 ms |
5952 KB |
Output is correct |
| 6 |
Correct |
2 ms |
5980 KB |
Output is correct |
| 7 |
Correct |
4 ms |
5724 KB |
Output is correct |
| 8 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 9 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 10 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 11 |
Correct |
4 ms |
5972 KB |
Output is correct |
| 12 |
Execution timed out |
5096 ms |
5724 KB |
Time limit exceeded |
| 13 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 2 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 4 |
Correct |
8 ms |
5980 KB |
Output is correct |
| 5 |
Correct |
13 ms |
5988 KB |
Output is correct |
| 6 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 7 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 8 |
Execution timed out |
5051 ms |
5980 KB |
Time limit exceeded |
| 9 |
Halted |
0 ms |
0 KB |
- |
