#include <bits/stdc++.h>
using namespace std;
#define int long long
vector<vector<int>> g;
vector<int> vis, depth;
void dfs(int v, int par){
vis[v] = 1;
if (par != -1) depth[v] = depth[par] + 1;
for (int u : g[v]){
if (u != par && vis[u] == 0){
dfs(u, v);
}
}
}
signed main(){
int n, m; cin >> n >> m;
g.clear();
g.resize(n + 1);
vis.clear();
vis.resize(n + 1);
depth.clear();
depth.resize(n + 1);
for (int i = 0; i < m; i++){
int a, b; cin >> a >> b;
g[a].push_back(b);
g[b].push_back(a);
}
int root = 0;
for (int i = 0; i < n; i++){
if ((long long)(g[i].size()) == 1) {
root = i;
break;
}
}
depth[root] = 0;
dfs(root, -1);
cout << 2*n*2 << endl;
for (int k = 0; k < 2*n; k++){
for (int i = 0; i < n; i++){
cout << depth[i] / 2 << ' ';
}
cout << endl;
for (int i = 0; i < n; i++){
if (depth[i] == 0) cout << 1 << ' ';
else cout << (depth[i] + 1) / 2 << ' ';
}
cout << endl;
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
3 ms |
348 KB |
Output is correct |
5 |
Correct |
3 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
If people start at 0 and 2, then they can avoid each other |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
464 KB |
Output is correct |
5 |
Correct |
3 ms |
348 KB |
Output is correct |
6 |
Correct |
3 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
3 ms |
348 KB |
Output is correct |
5 |
Correct |
3 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
464 KB |
Output is correct |
10 |
Correct |
3 ms |
348 KB |
Output is correct |
11 |
Correct |
3 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
3 ms |
496 KB |
Output is correct |
17 |
Correct |
3 ms |
436 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
4 ms |
348 KB |
Output is correct |
22 |
Correct |
3 ms |
348 KB |
Output is correct |
23 |
Correct |
2 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
3 ms |
348 KB |
Output is correct |
28 |
Correct |
3 ms |
516 KB |
Output is correct |
29 |
Correct |
3 ms |
348 KB |
Output is correct |
30 |
Correct |
3 ms |
348 KB |
Output is correct |
31 |
Correct |
3 ms |
348 KB |
Output is correct |
32 |
Correct |
3 ms |
348 KB |
Output is correct |
33 |
Correct |
3 ms |
468 KB |
Output is correct |
34 |
Correct |
3 ms |
348 KB |
Output is correct |
35 |
Correct |
3 ms |
476 KB |
Output is correct |
36 |
Correct |
3 ms |
348 KB |
Output is correct |
37 |
Correct |
3 ms |
348 KB |
Output is correct |
38 |
Correct |
3 ms |
348 KB |
Output is correct |
39 |
Correct |
3 ms |
348 KB |
Output is correct |
40 |
Correct |
3 ms |
344 KB |
Output is correct |
41 |
Correct |
3 ms |
348 KB |
Output is correct |
42 |
Correct |
3 ms |
348 KB |
Output is correct |
43 |
Correct |
3 ms |
344 KB |
Output is correct |
44 |
Correct |
3 ms |
348 KB |
Output is correct |
45 |
Correct |
3 ms |
500 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
344 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
0 ms |
348 KB |
Output is correct |
50 |
Correct |
0 ms |
348 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
0 ms |
504 KB |
Output is correct |
53 |
Correct |
0 ms |
348 KB |
Output is correct |
54 |
Correct |
0 ms |
348 KB |
Output is correct |
55 |
Correct |
0 ms |
348 KB |
Output is correct |
56 |
Correct |
0 ms |
348 KB |
Output is correct |
57 |
Correct |
1 ms |
348 KB |
Output is correct |
58 |
Correct |
0 ms |
348 KB |
Output is correct |
59 |
Correct |
0 ms |
348 KB |
Output is correct |
60 |
Correct |
0 ms |
348 KB |
Output is correct |
61 |
Correct |
0 ms |
348 KB |
Output is correct |
62 |
Correct |
0 ms |
348 KB |
Output is correct |
63 |
Correct |
1 ms |
348 KB |
Output is correct |
64 |
Correct |
0 ms |
348 KB |
Output is correct |
65 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
3 ms |
348 KB |
Output is correct |
5 |
Correct |
3 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Incorrect |
0 ms |
348 KB |
If people start at 0 and 2, then they can avoid each other |
8 |
Halted |
0 ms |
0 KB |
- |