| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 823211 |
2023-08-12T09:29:06 Z |
t6twotwo |
Wells (CEOI21_wells) |
C++17 |
|
31 ms |
340 KB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int N, K;
cin >> N >> K;
vector<vector<int>> adj(N);
for (int i = 0; i < N - 1; i++) {
int x, y;
cin >> x >> y;
x--, y--;
adj[x].push_back(y);
adj[y].push_back(x);
}
for (int root = 0; root < N; root++) {
vector<int> c(N);
auto color = [&](auto f, int x, int p, int dep) -> void {
if (dep % K == 0) {
c[x] = 1;
}
for (int y : adj[x]) {
if (y != p) {
f(f, y, x, dep + 1);
}
}
};
color(color, root, -1, 0);
auto dfs = [&](auto dfs, int x, int p, int cnt, int dep) -> bool {
if (dep == K - 1) {
return cnt == 1;
}
for (int y : adj[x]) {
if (y != p) {
if (!dfs(dfs, y, x, cnt + c[y], dep + 1)) {
return 0;
}
}
}
return 1;
};
bool ok = 1;
for (int i = 0; i < N; i++) {
if (!dfs(dfs, i, -1, c[i], 0)) {
ok = 0;
}
}
if (ok) {
cout << "YES\n1";
return 0;
}
}
cout << "NO\n0";
return 6/22;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Partially correct |
0 ms |
212 KB |
Output is partially correct |
| 2 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 3 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 4 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 5 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 6 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 7 |
Correct |
6 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
14 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
3 ms |
320 KB |
Output is correct |
| 15 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 16 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 17 |
Partially correct |
2 ms |
320 KB |
Output is partially correct |
| 18 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 19 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 20 |
Correct |
19 ms |
332 KB |
Output is correct |
| 21 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 22 |
Partially correct |
1 ms |
340 KB |
Output is partially correct |
| 23 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 24 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 25 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 26 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 27 |
Partially correct |
9 ms |
336 KB |
Output is partially correct |
| 28 |
Correct |
21 ms |
336 KB |
Output is correct |
| 29 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 30 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 31 |
Correct |
3 ms |
320 KB |
Output is correct |
| 32 |
Correct |
4 ms |
212 KB |
Output is correct |
| 33 |
Partially correct |
1 ms |
340 KB |
Output is partially correct |
| 34 |
Correct |
5 ms |
224 KB |
Output is correct |
| 35 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 36 |
Partially correct |
7 ms |
328 KB |
Output is partially correct |
| 37 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 38 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 39 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 40 |
Correct |
1 ms |
320 KB |
Output is correct |
| 41 |
Correct |
2 ms |
340 KB |
Output is correct |
| 42 |
Partially correct |
4 ms |
212 KB |
Output is partially correct |
| 43 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 44 |
Correct |
7 ms |
212 KB |
Output is correct |
| 45 |
Partially correct |
7 ms |
212 KB |
Output is partially correct |
| 46 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 47 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 48 |
Partially correct |
3 ms |
316 KB |
Output is partially correct |
| 49 |
Incorrect |
31 ms |
212 KB |
Output isn't correct |
| 50 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Partially correct |
0 ms |
212 KB |
Output is partially correct |
| 2 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 3 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 4 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 5 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 6 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 7 |
Correct |
6 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
14 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
3 ms |
320 KB |
Output is correct |
| 15 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 16 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 17 |
Partially correct |
2 ms |
320 KB |
Output is partially correct |
| 18 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 19 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 20 |
Correct |
19 ms |
332 KB |
Output is correct |
| 21 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 22 |
Partially correct |
1 ms |
340 KB |
Output is partially correct |
| 23 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 24 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 25 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 26 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 27 |
Partially correct |
9 ms |
336 KB |
Output is partially correct |
| 28 |
Correct |
21 ms |
336 KB |
Output is correct |
| 29 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 30 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 31 |
Correct |
3 ms |
320 KB |
Output is correct |
| 32 |
Correct |
4 ms |
212 KB |
Output is correct |
| 33 |
Partially correct |
1 ms |
340 KB |
Output is partially correct |
| 34 |
Correct |
5 ms |
224 KB |
Output is correct |
| 35 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 36 |
Partially correct |
7 ms |
328 KB |
Output is partially correct |
| 37 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 38 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 39 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 40 |
Correct |
1 ms |
320 KB |
Output is correct |
| 41 |
Correct |
2 ms |
340 KB |
Output is correct |
| 42 |
Partially correct |
4 ms |
212 KB |
Output is partially correct |
| 43 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 44 |
Correct |
7 ms |
212 KB |
Output is correct |
| 45 |
Partially correct |
7 ms |
212 KB |
Output is partially correct |
| 46 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 47 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 48 |
Partially correct |
3 ms |
316 KB |
Output is partially correct |
| 49 |
Incorrect |
31 ms |
212 KB |
Output isn't correct |
| 50 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Partially correct |
0 ms |
212 KB |
Output is partially correct |
| 2 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 3 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 4 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 5 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 6 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 7 |
Correct |
6 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
14 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
3 ms |
320 KB |
Output is correct |
| 15 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 16 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 17 |
Partially correct |
2 ms |
320 KB |
Output is partially correct |
| 18 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 19 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 20 |
Correct |
19 ms |
332 KB |
Output is correct |
| 21 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 22 |
Partially correct |
1 ms |
340 KB |
Output is partially correct |
| 23 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 24 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 25 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 26 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 27 |
Partially correct |
9 ms |
336 KB |
Output is partially correct |
| 28 |
Correct |
21 ms |
336 KB |
Output is correct |
| 29 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 30 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 31 |
Correct |
3 ms |
320 KB |
Output is correct |
| 32 |
Correct |
4 ms |
212 KB |
Output is correct |
| 33 |
Partially correct |
1 ms |
340 KB |
Output is partially correct |
| 34 |
Correct |
5 ms |
224 KB |
Output is correct |
| 35 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 36 |
Partially correct |
7 ms |
328 KB |
Output is partially correct |
| 37 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 38 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 39 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 40 |
Correct |
1 ms |
320 KB |
Output is correct |
| 41 |
Correct |
2 ms |
340 KB |
Output is correct |
| 42 |
Partially correct |
4 ms |
212 KB |
Output is partially correct |
| 43 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 44 |
Correct |
7 ms |
212 KB |
Output is correct |
| 45 |
Partially correct |
7 ms |
212 KB |
Output is partially correct |
| 46 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 47 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 48 |
Partially correct |
3 ms |
316 KB |
Output is partially correct |
| 49 |
Incorrect |
31 ms |
212 KB |
Output isn't correct |
| 50 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Partially correct |
0 ms |
212 KB |
Output is partially correct |
| 2 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 3 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 4 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 5 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 6 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 7 |
Correct |
6 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
14 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
3 ms |
320 KB |
Output is correct |
| 15 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 16 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 17 |
Partially correct |
2 ms |
320 KB |
Output is partially correct |
| 18 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 19 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 20 |
Correct |
19 ms |
332 KB |
Output is correct |
| 21 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 22 |
Partially correct |
1 ms |
340 KB |
Output is partially correct |
| 23 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 24 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 25 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 26 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 27 |
Partially correct |
9 ms |
336 KB |
Output is partially correct |
| 28 |
Correct |
21 ms |
336 KB |
Output is correct |
| 29 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 30 |
Partially correct |
2 ms |
212 KB |
Output is partially correct |
| 31 |
Correct |
3 ms |
320 KB |
Output is correct |
| 32 |
Correct |
4 ms |
212 KB |
Output is correct |
| 33 |
Partially correct |
1 ms |
340 KB |
Output is partially correct |
| 34 |
Correct |
5 ms |
224 KB |
Output is correct |
| 35 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 36 |
Partially correct |
7 ms |
328 KB |
Output is partially correct |
| 37 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 38 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 39 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 40 |
Correct |
1 ms |
320 KB |
Output is correct |
| 41 |
Correct |
2 ms |
340 KB |
Output is correct |
| 42 |
Partially correct |
4 ms |
212 KB |
Output is partially correct |
| 43 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 44 |
Correct |
7 ms |
212 KB |
Output is correct |
| 45 |
Partially correct |
7 ms |
212 KB |
Output is partially correct |
| 46 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 47 |
Partially correct |
1 ms |
212 KB |
Output is partially correct |
| 48 |
Partially correct |
3 ms |
316 KB |
Output is partially correct |
| 49 |
Incorrect |
31 ms |
212 KB |
Output isn't correct |
| 50 |
Halted |
0 ms |
0 KB |
- |
