#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n, m;
cin >> n >> m;
vector<vector<int>> g(n);
for (int i = 0; i < m; i++) {
int u, v;
cin >> u >> v;
--u; --v;
g[u].push_back(v);
g[v].push_back(u);
}
const int inf = (int) 1e9;
vector<int> dist(1 << n, inf);
vector<int> que(1, (1 << n) - 1);
dist[que.back()] = 0;
vector<pair<int, int>> prv(1 << n, {-1, -1});
for (int b = 0; b < (int) que.size(); b++) {
int mask = que[b];
for (int i = 0; i < n; i++) {
if (!(mask >> i & 1)) {
continue;
}
int nmask = 0;
for (int j = 0; j < n; j++) {
if (i == j) {
continue;
}
if (!(mask >> j & 1)) {
continue;
}
for (int v : g[j]) {
nmask |= (1 << v);
}
}
if (dist[nmask] > dist[mask] + 1) {
dist[nmask] = dist[mask] + 1;
prv[nmask] = {mask, i};
que.push_back(nmask);
}
}
}
if (dist[0] == inf) {
cout << "NO" << '\n';
return 0;
}
int c = 0;
vector<int> res;
while (c != (1 << n) - 1) {
int nc = prv[c].first;
res.push_back(prv[c].second);
c = nc;
}
cout << "YES" << '\n';
cout << (int) res.size() << '\n';
for (int i : res) {
cout << i + 1 << " ";
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
0 ms |
604 KB |
Output is correct |
33 |
Correct |
1 ms |
452 KB |
Output is correct |
34 |
Correct |
0 ms |
604 KB |
Output is correct |
35 |
Correct |
1 ms |
604 KB |
Output is correct |
36 |
Correct |
1 ms |
860 KB |
Output is correct |
37 |
Correct |
1 ms |
712 KB |
Output is correct |
38 |
Correct |
0 ms |
860 KB |
Output is correct |
39 |
Correct |
1 ms |
1116 KB |
Output is correct |
40 |
Correct |
1 ms |
1116 KB |
Output is correct |
41 |
Correct |
1 ms |
1120 KB |
Output is correct |
42 |
Correct |
1 ms |
1116 KB |
Output is correct |
43 |
Correct |
1 ms |
1832 KB |
Output is correct |
44 |
Correct |
1 ms |
1884 KB |
Output is correct |
45 |
Correct |
1 ms |
1884 KB |
Output is correct |
46 |
Correct |
1 ms |
1884 KB |
Output is correct |
47 |
Correct |
2 ms |
3420 KB |
Output is correct |
48 |
Correct |
2 ms |
3420 KB |
Output is correct |
49 |
Correct |
1 ms |
3420 KB |
Output is correct |
50 |
Correct |
1 ms |
3420 KB |
Output is correct |
51 |
Correct |
3 ms |
6492 KB |
Output is correct |
52 |
Correct |
2 ms |
6492 KB |
Output is correct |
53 |
Correct |
2 ms |
6492 KB |
Output is correct |
54 |
Correct |
2 ms |
6404 KB |
Output is correct |
55 |
Correct |
4 ms |
12892 KB |
Output is correct |
56 |
Correct |
3 ms |
12636 KB |
Output is correct |
57 |
Correct |
3 ms |
12636 KB |
Output is correct |
58 |
Correct |
3 ms |
12636 KB |
Output is correct |
59 |
Correct |
3 ms |
12636 KB |
Output is correct |
60 |
Correct |
3 ms |
12636 KB |
Output is correct |
61 |
Correct |
3 ms |
12636 KB |
Output is correct |
62 |
Correct |
3 ms |
12636 KB |
Output is correct |
63 |
Correct |
3 ms |
12636 KB |
Output is correct |
64 |
Correct |
3 ms |
12636 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Runtime error |
2 ms |
2140 KB |
Execution killed with signal 11 |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
344 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
0 ms |
604 KB |
Output is correct |
33 |
Correct |
1 ms |
452 KB |
Output is correct |
34 |
Correct |
0 ms |
604 KB |
Output is correct |
35 |
Correct |
1 ms |
604 KB |
Output is correct |
36 |
Correct |
1 ms |
860 KB |
Output is correct |
37 |
Correct |
1 ms |
712 KB |
Output is correct |
38 |
Correct |
0 ms |
860 KB |
Output is correct |
39 |
Correct |
1 ms |
1116 KB |
Output is correct |
40 |
Correct |
1 ms |
1116 KB |
Output is correct |
41 |
Correct |
1 ms |
1120 KB |
Output is correct |
42 |
Correct |
1 ms |
1116 KB |
Output is correct |
43 |
Correct |
1 ms |
1832 KB |
Output is correct |
44 |
Correct |
1 ms |
1884 KB |
Output is correct |
45 |
Correct |
1 ms |
1884 KB |
Output is correct |
46 |
Correct |
1 ms |
1884 KB |
Output is correct |
47 |
Correct |
2 ms |
3420 KB |
Output is correct |
48 |
Correct |
2 ms |
3420 KB |
Output is correct |
49 |
Correct |
1 ms |
3420 KB |
Output is correct |
50 |
Correct |
1 ms |
3420 KB |
Output is correct |
51 |
Correct |
3 ms |
6492 KB |
Output is correct |
52 |
Correct |
2 ms |
6492 KB |
Output is correct |
53 |
Correct |
2 ms |
6492 KB |
Output is correct |
54 |
Correct |
2 ms |
6404 KB |
Output is correct |
55 |
Correct |
4 ms |
12892 KB |
Output is correct |
56 |
Correct |
3 ms |
12636 KB |
Output is correct |
57 |
Correct |
3 ms |
12636 KB |
Output is correct |
58 |
Correct |
3 ms |
12636 KB |
Output is correct |
59 |
Correct |
3 ms |
12636 KB |
Output is correct |
60 |
Correct |
3 ms |
12636 KB |
Output is correct |
61 |
Correct |
3 ms |
12636 KB |
Output is correct |
62 |
Correct |
3 ms |
12636 KB |
Output is correct |
63 |
Correct |
3 ms |
12636 KB |
Output is correct |
64 |
Correct |
3 ms |
12636 KB |
Output is correct |
65 |
Correct |
0 ms |
344 KB |
Output is correct |
66 |
Correct |
0 ms |
348 KB |
Output is correct |
67 |
Correct |
0 ms |
348 KB |
Output is correct |
68 |
Correct |
0 ms |
344 KB |
Output is correct |
69 |
Correct |
0 ms |
348 KB |
Output is correct |
70 |
Correct |
0 ms |
348 KB |
Output is correct |
71 |
Correct |
0 ms |
348 KB |
Output is correct |
72 |
Correct |
0 ms |
348 KB |
Output is correct |
73 |
Correct |
0 ms |
348 KB |
Output is correct |
74 |
Correct |
0 ms |
452 KB |
Output is correct |
75 |
Correct |
1 ms |
348 KB |
Output is correct |
76 |
Correct |
0 ms |
348 KB |
Output is correct |
77 |
Correct |
0 ms |
348 KB |
Output is correct |
78 |
Correct |
0 ms |
348 KB |
Output is correct |
79 |
Runtime error |
181 ms |
524288 KB |
Execution killed with signal 9 |
80 |
Halted |
0 ms |
0 KB |
- |