#include<bits/stdc++.h>
using namespace std;
int n, dp[100100], vln[100100], vlx[100100], ansn, ansx, cen, depth[100100];
vector<int> vc[100100], ans;
void dfs(int u, int pa){
for(auto v:vc[u]){
if(v == pa) continue;
dfs(v, u);
if(vln[v] == v){
ansn+=2;
swap(vln[v], vln[u]);
}
dp[u]+=dp[v];
}
}
void dfs2(int u, int pa){
ans.emplace_back(u);
for(auto v:vc[u]){
if(v == pa) continue;
depth[v] = depth[u] + 1;
dfs2(v, u);
}
}
int centroid(int u, int pa){
for(auto v:vc[u]){
if(v == pa) continue;
if(dp[v] > n / 2) return centroid(v, u);
}
return u;
}
int main(){
cin.tie(nullptr)->sync_with_stdio(false);
cin >> n;
for(int i = 1; i<=n; ++i){
vln[i] = i;
dp[i] = 1;
}
for(int i = 1; i<n; ++i){
int a, b; cin >> a >> b;
vc[a].push_back(b);
vc[b].push_back(a);
}
dfs(1, -1);
if(vln[1] == 1){
ansn+=2;
swap(vln[1], vln[vc[1][0]]);
}
cen = centroid(1, -1);
dfs2(cen, -1);
for(int i = 1; i<=n; ++i) ansx+=depth[i]*2;
cout << ansn << ' ' << ansx << '\n';
for(int i = 0; i<n; ++i) vlx[ans[(i+n/2)%n]] = ans[i];
for(int i = 1; i<=n; ++i) cout << vln[i] << ' ';
cout << '\n';
for(int i = 1; i<=n; ++i) cout << vlx[i] << ' ';
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2652 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 15 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 22 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2664 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 29 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2652 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 29 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 31 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 32 |
Correct |
1 ms |
3160 KB |
Output is correct |
| 33 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 34 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 35 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 36 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 37 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 38 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 39 |
Correct |
2 ms |
2652 KB |
Output is correct |
| 40 |
Correct |
1 ms |
2664 KB |
Output is correct |
| 41 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 42 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 43 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 44 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 45 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 46 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 47 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 48 |
Correct |
38 ms |
9676 KB |
Output is correct |
| 49 |
Correct |
40 ms |
10332 KB |
Output is correct |
| 50 |
Correct |
44 ms |
10452 KB |
Output is correct |
| 51 |
Correct |
31 ms |
8776 KB |
Output is correct |
| 52 |
Correct |
39 ms |
10196 KB |
Output is correct |
| 53 |
Correct |
35 ms |
9580 KB |
Output is correct |
| 54 |
Correct |
23 ms |
9940 KB |
Output is correct |
| 55 |
Partially correct |
54 ms |
17868 KB |
Partially correct |
| 56 |
Partially correct |
58 ms |
14024 KB |
Partially correct |
| 57 |
Correct |
49 ms |
12672 KB |
Output is correct |
| 58 |
Correct |
42 ms |
11472 KB |
Output is correct |
| 59 |
Correct |
45 ms |
10440 KB |
Output is correct |
| 60 |
Correct |
36 ms |
10636 KB |
Output is correct |
| 61 |
Correct |
47 ms |
10680 KB |
Output is correct |
| 62 |
Correct |
39 ms |
10708 KB |
Output is correct |
| 63 |
Correct |
34 ms |
10208 KB |
Output is correct |
| 64 |
Correct |
46 ms |
10704 KB |
Output is correct |
| 65 |
Correct |
38 ms |
10704 KB |
Output is correct |
| 66 |
Correct |
31 ms |
10356 KB |
Output is correct |
| 67 |
Correct |
26 ms |
8692 KB |
Output is correct |
| 68 |
Correct |
43 ms |
9924 KB |
Output is correct |
| 69 |
Correct |
36 ms |
10696 KB |
Output is correct |
| 70 |
Correct |
32 ms |
10444 KB |
Output is correct |
| 71 |
Correct |
26 ms |
8516 KB |
Output is correct |
| 72 |
Correct |
35 ms |
9164 KB |
Output is correct |
| 73 |
Correct |
35 ms |
10696 KB |
Output is correct |
| 74 |
Correct |
34 ms |
10188 KB |
Output is correct |
| 75 |
Correct |
40 ms |
10164 KB |
Output is correct |
| 76 |
Correct |
47 ms |
10184 KB |
Output is correct |
| 77 |
Correct |
34 ms |
10444 KB |
Output is correct |
| 78 |
Correct |
24 ms |
7840 KB |
Output is correct |
| 79 |
Correct |
30 ms |
8648 KB |
Output is correct |
| 80 |
Correct |
61 ms |
10148 KB |
Output is correct |
| 81 |
Correct |
45 ms |
10528 KB |
Output is correct |
| 82 |
Correct |
34 ms |
10708 KB |
Output is correct |
