#include<bits/stdc++.h>
#define int long long
#define pii pair<long long, long long>
using namespace std;
int n, minn = 0, maxx = 0;
vector<vector<int> >G;
vector<int>minans;
vector<int>maxans;
bool dfs(int x, int p) {
vector<int>c;
for (auto i : G[x]) {
if (i == p) continue;
bool can = dfs(i, x);
if (can) {
c.push_back(i);
}
}
//cout << x <<" " << c.size() << "\n";
for (int i = 0 ; i < c.size()/2 ; i++) {
minn += 4;
minans[c[i*2]] = i*2+1;
minans[c[i*2+1]] = i*2;
}
if (c.size() % 2 == 1) {
minn += 2;
minans[c.back()] = x;
minans[x] = c.back();
return 0;
} else {
if (x == 0) {
minn += 2;
minans[x] = minans[G[x][0]];
minans[G[x][0]] = x;
return 0;
}
return 1;
}
}
int cnt;
int findc(int x, int p) {
int num = 1;
bool can = 1;
for (auto i : G[x]) {
if (i == p) continue;
int child = findc(i, x);
if (child > n/2) can = 0;
num += child;
}
if (n - num > n/2) can = 0;
if (can) cnt = x;
return num;
}
vector<int>arr;
void dis(int x, int p, int d) {
maxx += d*2;
arr.push_back(x);
for (auto i : G[x]) {
if (i == p) continue;
dis(i, x, d+1);
}
}
signed main() {
cin >> n;
G.resize(n); minans.resize(n); maxans.resize(n);
int a, b;
for (int i = 0 ; i < n-1 ; i++){
cin >> a >> b; a--, b--;
G[a].push_back(b);
G[b].push_back(a);
}
dfs(0, -1);
findc(0, -1);
dis(cnt, -1, 0);
for (int i = 0 ; i < n ; i++) {
//cout << arr[i] <<" ";
maxans[arr[i]] = arr[(i+n/2)%n];
}
//cout <<"\n";
cout << minn << " " << maxx << "\n";
for (auto i : minans) cout << i+1 << " "; cout << "\n";
for (auto i : maxans) cout << i+1 << " "; cout << "\n";
}
Compilation message
Village.cpp: In function 'bool dfs(long long int, long long int)':
Village.cpp:21:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
21 | for (int i = 0 ; i < c.size()/2 ; i++) {
| ~~^~~~~~~~~~~~
Village.cpp: In function 'int main()':
Village.cpp:87:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
87 | for (auto i : minans) cout << i+1 << " "; cout << "\n";
| ^~~
Village.cpp:87:44: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
87 | for (auto i : minans) cout << i+1 << " "; cout << "\n";
| ^~~~
Village.cpp:88:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
88 | for (auto i : maxans) cout << i+1 << " "; cout << "\n";
| ^~~
Village.cpp:88:44: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
88 | for (auto i : maxans) cout << i+1 << " "; cout << "\n";
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
600 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 5 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 6 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 7 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 8 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 9 |
Partially correct |
0 ms |
436 KB |
Partially correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 14 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 15 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 16 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 17 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 2 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 3 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 4 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 5 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 6 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 7 |
Correct |
1 ms |
444 KB |
Output is correct |
| 8 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 9 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 10 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 11 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 12 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 13 |
Partially correct |
1 ms |
344 KB |
Partially correct |
| 14 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 15 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 16 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 17 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 18 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 19 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 20 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 21 |
Partially correct |
1 ms |
436 KB |
Partially correct |
| 22 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 23 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 24 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 25 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 26 |
Partially correct |
1 ms |
440 KB |
Partially correct |
| 27 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 28 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 29 |
Partially correct |
1 ms |
432 KB |
Partially correct |
| 30 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
600 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 5 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 6 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 7 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 8 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 9 |
Partially correct |
0 ms |
436 KB |
Partially correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 14 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 15 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 16 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 17 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 18 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 19 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 20 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 21 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 22 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 23 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 24 |
Correct |
1 ms |
444 KB |
Output is correct |
| 25 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 26 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 27 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 28 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 29 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 30 |
Partially correct |
1 ms |
344 KB |
Partially correct |
| 31 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 32 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 33 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 34 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 35 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 36 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 37 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 38 |
Partially correct |
1 ms |
436 KB |
Partially correct |
| 39 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 40 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 41 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 42 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 43 |
Partially correct |
1 ms |
440 KB |
Partially correct |
| 44 |
Partially correct |
0 ms |
348 KB |
Partially correct |
| 45 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 46 |
Partially correct |
1 ms |
432 KB |
Partially correct |
| 47 |
Partially correct |
1 ms |
348 KB |
Partially correct |
| 48 |
Partially correct |
54 ms |
10180 KB |
Partially correct |
| 49 |
Partially correct |
56 ms |
11188 KB |
Partially correct |
| 50 |
Partially correct |
56 ms |
11040 KB |
Partially correct |
| 51 |
Partially correct |
43 ms |
8652 KB |
Partially correct |
| 52 |
Partially correct |
53 ms |
10824 KB |
Partially correct |
| 53 |
Partially correct |
56 ms |
9928 KB |
Partially correct |
| 54 |
Correct |
31 ms |
10452 KB |
Output is correct |
| 55 |
Correct |
68 ms |
21216 KB |
Output is correct |
| 56 |
Partially correct |
60 ms |
16072 KB |
Partially correct |
| 57 |
Partially correct |
60 ms |
14348 KB |
Partially correct |
| 58 |
Partially correct |
60 ms |
12792 KB |
Partially correct |
| 59 |
Partially correct |
55 ms |
11152 KB |
Partially correct |
| 60 |
Partially correct |
44 ms |
12136 KB |
Partially correct |
| 61 |
Partially correct |
49 ms |
11452 KB |
Partially correct |
| 62 |
Partially correct |
53 ms |
11492 KB |
Partially correct |
| 63 |
Partially correct |
44 ms |
10716 KB |
Partially correct |
| 64 |
Partially correct |
49 ms |
11216 KB |
Partially correct |
| 65 |
Partially correct |
53 ms |
11464 KB |
Partially correct |
| 66 |
Partially correct |
53 ms |
10692 KB |
Partially correct |
| 67 |
Partially correct |
37 ms |
8612 KB |
Partially correct |
| 68 |
Partially correct |
42 ms |
9668 KB |
Partially correct |
| 69 |
Partially correct |
64 ms |
11468 KB |
Partially correct |
| 70 |
Partially correct |
50 ms |
10948 KB |
Partially correct |
| 71 |
Partially correct |
33 ms |
8132 KB |
Partially correct |
| 72 |
Partially correct |
36 ms |
9160 KB |
Partially correct |
| 73 |
Partially correct |
46 ms |
11472 KB |
Partially correct |
| 74 |
Partially correct |
47 ms |
10444 KB |
Partially correct |
| 75 |
Partially correct |
59 ms |
11336 KB |
Partially correct |
| 76 |
Partially correct |
57 ms |
10956 KB |
Partially correct |
| 77 |
Partially correct |
49 ms |
10952 KB |
Partially correct |
| 78 |
Partially correct |
33 ms |
7632 KB |
Partially correct |
| 79 |
Partially correct |
45 ms |
8644 KB |
Partially correct |
| 80 |
Partially correct |
58 ms |
11212 KB |
Partially correct |
| 81 |
Partially correct |
51 ms |
11212 KB |
Partially correct |
| 82 |
Partially correct |
47 ms |
11212 KB |
Partially correct |
