6742 | 2023. 12. 18 15:34:19 | 111 | Utazási iroda | cpp17 | Elfogadva 45/45 | 59ms | 25056 KiB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define double long double
#define pii pair<int, int>
signed main() {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
#ifdef CB
freopen("be2.txt", "r", stdin);
// freopen("out.txt", "w", stdout);
#endif
int N, K;
cin >> N >> K;
vector<vector<int>> g(N + 1);
for (int i = 0; i < N - 1; i++) {
int a, b;
cin >> a >> b;
g[a].push_back(b);
g[b].push_back(a);
}
K--;
int s = 1 + K / N;
K %= N;
vector<int> d(N + 1, 1);
auto dfs1 = [&](auto dfs1, int i, int j) -> void {
for (int k : g[j]) {
if (k != i) {
dfs1(dfs1, j, k);
d[j] += d[k];
}
}
};
dfs1(dfs1, s, s);
vector<int> ans;
auto dfs2 = [&](auto dfs2, int i, int j) -> void {
ans.push_back(j);
sort(g[j].begin(), g[j].end());
for (int k : g[j]) {
if (k != i) {
if (K <= d[k]) {
if (K > 0) {
K--;
dfs2(dfs2, j, k);
}
}
else {
K -= d[k];
}
}
}
};
dfs2(dfs2, s, s);
for (int i : ans) {
cout << i << ' ';
}
cout << '\n';
return 0;
}
Részfeladat | Összpont | Teszt | Verdikt | Idő | Memória | ||
---|---|---|---|---|---|---|---|
base | 45/45 | ||||||
1 | Elfogadva | 0/0 | 3ms | 1828 KiB | |||
2 | Elfogadva | 0/0 | 8ms | 3480 KiB | |||
3 | Elfogadva | 2/2 | 3ms | 2240 KiB | |||
4 | Elfogadva | 2/2 | 3ms | 2460 KiB | |||
5 | Elfogadva | 1/1 | 3ms | 2808 KiB | |||
6 | Elfogadva | 2/2 | 4ms | 3260 KiB | |||
7 | Elfogadva | 2/2 | 3ms | 3484 KiB | |||
8 | Elfogadva | 1/1 | 4ms | 3948 KiB | |||
9 | Elfogadva | 2/2 | 56ms | 23468 KiB | |||
10 | Elfogadva | 2/2 | 57ms | 24040 KiB | |||
11 | Elfogadva | 1/1 | 59ms | 25056 KiB | |||
12 | Elfogadva | 2/2 | 50ms | 17156 KiB | |||
13 | Elfogadva | 2/2 | 43ms | 18196 KiB | |||
14 | Elfogadva | 2/2 | 50ms | 17352 KiB | |||
15 | Elfogadva | 2/2 | 50ms | 17348 KiB | |||
16 | Elfogadva | 2/2 | 46ms | 18272 KiB | |||
17 | Elfogadva | 3/3 | 50ms | 17364 KiB | |||
18 | Elfogadva | 2/2 | 50ms | 17664 KiB | |||
19 | Elfogadva | 2/2 | 46ms | 17632 KiB | |||
20 | Elfogadva | 2/2 | 48ms | 18704 KiB | |||
21 | Elfogadva | 3/3 | 48ms | 17680 KiB | |||
22 | Elfogadva | 3/3 | 48ms | 18020 KiB | |||
23 | Elfogadva | 3/3 | 52ms | 18496 KiB | |||
24 | Elfogadva | 1/1 | 48ms | 18692 KiB | |||
25 | Elfogadva | 1/1 | 52ms | 19832 KiB |