#include <bits/stdc++.h>
using namespace std;
const int N = 1e5+1;
int n, ct, sub[N], eC[N], ans[2][N], cost;
long long tot;
vector<int> e[N], v;
void dfs(int c, int p)
{
int mx=0;
sub[c]=1;
for (int i : e[c])
if (i!=p)
{
dfs(i,c);
sub[c]+=sub[i];
tot+=min(sub[i],n-sub[i])*2;
mx=max(mx,sub[i]);
}
if (max(mx,n-sub[c])<=n/2)
ct=c;
}
void dfsAns(int c, int p)
{
v.push_back(c);
for (int i : e[c])
if (i!=p)
dfsAns(i,c);
}
int main()
{
ios_base::sync_with_stdio(0); cin.tie(0);
int x,y;
cin>>n;
for (int i=1;i<n;++i)
{
cin>>x>>y;
e[x].push_back(y);
e[y].push_back(x);
ans[0][i]=i;
}
ans[0][n]=n;
stack<int> s;
for (int i=1;i<=n;++i)
{
eC[i]=e[i].size();
if (eC[i]==1)
s.push(i);
}
while (!s.empty())
{
x=s.top();
s.pop();
for (int i : e[x])
{
if (--eC[i]==1)
s.push(i);
if (ans[0][x]!=x)
continue;
cost+=2;
swap(ans[0][x],ans[0][i]);
}
}
for (int i=1;i<=n;++i)
if (ans[0][i]==i)
{
cost+=2;
swap(ans[0][i],ans[0][e[i][0]]);
}
dfs(1,0);
dfsAns(ct,0);
cout<<cost<<" "<<tot<<"\n";
for (int i=0;i<n;++i)
ans[1][v[i]]=v[(i+n/2)%n];
for (int j=0;j<2;++j)
{
for (int i=1;i<=n;++i)
cout<<ans[j][i]<<" ";
cout<<"\n";
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2636 KB |
Output is correct |
2 |
Correct |
2 ms |
2676 KB |
Output is correct |
3 |
Correct |
3 ms |
2636 KB |
Output is correct |
4 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
5 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
6 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
7 |
Correct |
2 ms |
2636 KB |
Output is correct |
8 |
Correct |
2 ms |
2676 KB |
Output is correct |
9 |
Correct |
2 ms |
2636 KB |
Output is correct |
10 |
Partially correct |
2 ms |
2684 KB |
Partially correct |
11 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
12 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
13 |
Correct |
2 ms |
2672 KB |
Output is correct |
14 |
Correct |
2 ms |
2636 KB |
Output is correct |
15 |
Correct |
2 ms |
2636 KB |
Output is correct |
16 |
Correct |
2 ms |
2636 KB |
Output is correct |
17 |
Correct |
2 ms |
2636 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
2 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
3 |
Partially correct |
3 ms |
2672 KB |
Partially correct |
4 |
Partially correct |
4 ms |
2764 KB |
Partially correct |
5 |
Partially correct |
3 ms |
2784 KB |
Partially correct |
6 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
7 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
8 |
Partially correct |
3 ms |
2672 KB |
Partially correct |
9 |
Partially correct |
3 ms |
2660 KB |
Partially correct |
10 |
Partially correct |
3 ms |
2680 KB |
Partially correct |
11 |
Partially correct |
3 ms |
2652 KB |
Partially correct |
12 |
Correct |
3 ms |
2764 KB |
Output is correct |
13 |
Correct |
3 ms |
2688 KB |
Output is correct |
14 |
Correct |
3 ms |
2764 KB |
Output is correct |
15 |
Correct |
3 ms |
2764 KB |
Output is correct |
16 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
17 |
Correct |
4 ms |
2764 KB |
Output is correct |
18 |
Correct |
3 ms |
2764 KB |
Output is correct |
19 |
Correct |
3 ms |
2680 KB |
Output is correct |
20 |
Correct |
4 ms |
2680 KB |
Output is correct |
21 |
Correct |
3 ms |
2764 KB |
Output is correct |
22 |
Correct |
3 ms |
2764 KB |
Output is correct |
23 |
Partially correct |
3 ms |
2684 KB |
Partially correct |
24 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
25 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
26 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
27 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
28 |
Partially correct |
3 ms |
2684 KB |
Partially correct |
29 |
Correct |
3 ms |
2764 KB |
Output is correct |
30 |
Correct |
3 ms |
2764 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2636 KB |
Output is correct |
2 |
Correct |
2 ms |
2676 KB |
Output is correct |
3 |
Correct |
3 ms |
2636 KB |
Output is correct |
4 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
5 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
6 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
7 |
Correct |
2 ms |
2636 KB |
Output is correct |
8 |
Correct |
2 ms |
2676 KB |
Output is correct |
9 |
Correct |
2 ms |
2636 KB |
Output is correct |
10 |
Partially correct |
2 ms |
2684 KB |
Partially correct |
11 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
12 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
13 |
Correct |
2 ms |
2672 KB |
Output is correct |
14 |
Correct |
2 ms |
2636 KB |
Output is correct |
15 |
Correct |
2 ms |
2636 KB |
Output is correct |
16 |
Correct |
2 ms |
2636 KB |
Output is correct |
17 |
Correct |
2 ms |
2636 KB |
Output is correct |
18 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
19 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
20 |
Partially correct |
3 ms |
2672 KB |
Partially correct |
21 |
Partially correct |
4 ms |
2764 KB |
Partially correct |
22 |
Partially correct |
3 ms |
2784 KB |
Partially correct |
23 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
24 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
25 |
Partially correct |
3 ms |
2672 KB |
Partially correct |
26 |
Partially correct |
3 ms |
2660 KB |
Partially correct |
27 |
Partially correct |
3 ms |
2680 KB |
Partially correct |
28 |
Partially correct |
3 ms |
2652 KB |
Partially correct |
29 |
Correct |
3 ms |
2764 KB |
Output is correct |
30 |
Correct |
3 ms |
2688 KB |
Output is correct |
31 |
Correct |
3 ms |
2764 KB |
Output is correct |
32 |
Correct |
3 ms |
2764 KB |
Output is correct |
33 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
34 |
Correct |
4 ms |
2764 KB |
Output is correct |
35 |
Correct |
3 ms |
2764 KB |
Output is correct |
36 |
Correct |
3 ms |
2680 KB |
Output is correct |
37 |
Correct |
4 ms |
2680 KB |
Output is correct |
38 |
Correct |
3 ms |
2764 KB |
Output is correct |
39 |
Correct |
3 ms |
2764 KB |
Output is correct |
40 |
Partially correct |
3 ms |
2684 KB |
Partially correct |
41 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
42 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
43 |
Partially correct |
3 ms |
2764 KB |
Partially correct |
44 |
Partially correct |
2 ms |
2636 KB |
Partially correct |
45 |
Partially correct |
3 ms |
2684 KB |
Partially correct |
46 |
Correct |
3 ms |
2764 KB |
Output is correct |
47 |
Correct |
3 ms |
2764 KB |
Output is correct |
48 |
Partially correct |
71 ms |
9704 KB |
Partially correct |
49 |
Partially correct |
87 ms |
10432 KB |
Partially correct |
50 |
Partially correct |
82 ms |
10496 KB |
Partially correct |
51 |
Partially correct |
59 ms |
8636 KB |
Partially correct |
52 |
Partially correct |
86 ms |
10272 KB |
Partially correct |
53 |
Partially correct |
69 ms |
9532 KB |
Partially correct |
54 |
Partially correct |
42 ms |
9936 KB |
Partially correct |
55 |
Partially correct |
100 ms |
17740 KB |
Partially correct |
56 |
Partially correct |
86 ms |
13872 KB |
Partially correct |
57 |
Partially correct |
95 ms |
12712 KB |
Partially correct |
58 |
Partially correct |
93 ms |
11428 KB |
Partially correct |
59 |
Partially correct |
78 ms |
10460 KB |
Partially correct |
60 |
Correct |
63 ms |
10984 KB |
Output is correct |
61 |
Correct |
69 ms |
10944 KB |
Output is correct |
62 |
Correct |
71 ms |
10984 KB |
Output is correct |
63 |
Correct |
66 ms |
10516 KB |
Output is correct |
64 |
Partially correct |
73 ms |
10848 KB |
Partially correct |
65 |
Correct |
71 ms |
10972 KB |
Output is correct |
66 |
Correct |
68 ms |
10484 KB |
Output is correct |
67 |
Correct |
47 ms |
8772 KB |
Output is correct |
68 |
Correct |
58 ms |
9644 KB |
Output is correct |
69 |
Correct |
71 ms |
11072 KB |
Output is correct |
70 |
Correct |
68 ms |
10500 KB |
Output is correct |
71 |
Correct |
47 ms |
8508 KB |
Output is correct |
72 |
Correct |
54 ms |
9280 KB |
Output is correct |
73 |
Correct |
71 ms |
11072 KB |
Output is correct |
74 |
Correct |
62 ms |
10340 KB |
Output is correct |
75 |
Partially correct |
81 ms |
10172 KB |
Partially correct |
76 |
Partially correct |
76 ms |
10328 KB |
Partially correct |
77 |
Partially correct |
72 ms |
10560 KB |
Partially correct |
78 |
Partially correct |
46 ms |
7980 KB |
Partially correct |
79 |
Partially correct |
56 ms |
8892 KB |
Partially correct |
80 |
Partially correct |
87 ms |
10224 KB |
Partially correct |
81 |
Partially correct |
73 ms |
10676 KB |
Partially correct |
82 |
Partially correct |
71 ms |
10860 KB |
Partially correct |