#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define FFOR(i,a,b,c) for(int i=(a);(c)>0?i<=(b):i>=(b);i+=(c))
#define FOOR(i,a,b) FFOR(i,a,b-1,1)
#define ROOF(i,a,b) FFOR(i,b-1,a,-1)
#define FOR(i,n) FOOR(i,0,n)
#define ROF(i,n) ROOF(i,0,n)
#define FORR(x,v) for(auto &x:v)
#define all(v) (v).begin(),(v).end()
#define lla(v) (v).rbegin(),(v).rend()
#define sz(v) (int)((v).size())
#define vc vector
#define pb push_back
#define ppb pop_back
#define bk back()
#define fr front()
#define pp pop()
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
#define bg begin()
#define en end()
#define em empty()
#define f first
#define s second
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int N,M;
cin>>N>>M;
vc<int> adj(N);
FOR(i,M){
int x,y;
cin>>x>>y;
x--,y--;
adj[x]+=1<<y;
adj[y]+=1<<x;
}
if(M!=N-1){
cout<<"NO\n";
return 0;
}
vector<int> f(1<<N,-1),g(1<<N);
queue<int> q;
f[(1<<N)-1]=0;
q.push((1<<N)-1);
while(!q.em){
int m=q.fr;q.pp;
FOR(i,N){
if(~m>>i&1) continue;
int m2=0;
FOR(j,N){
if(i!=j&&(m>>j&1)) m2|=adj[j];
}
if(f[m2]==-1){
f[m2]=m;
g[m2]=i;
q.push(m2);
}
}
}
if(f[0]==-1){
cout<<"NO\n";
return 0;
}
cout<<"YES\n";
vc<int> ans;
for(int i=0;i!=(1<<N)-1;i=f[i]) ans.pb(g[i]);
reverse(all(ans));
cout<<sz(ans)<<"\n";
FORR(x,ans)cout<<x+1<<" ";
return 6/22;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
316 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
320 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
316 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
320 KB |
Output is correct |
20 |
Correct |
0 ms |
324 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
452 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
576 KB |
Output is correct |
36 |
Correct |
1 ms |
468 KB |
Output is correct |
37 |
Correct |
1 ms |
596 KB |
Output is correct |
38 |
Correct |
1 ms |
468 KB |
Output is correct |
39 |
Correct |
1 ms |
724 KB |
Output is correct |
40 |
Correct |
1 ms |
724 KB |
Output is correct |
41 |
Correct |
1 ms |
724 KB |
Output is correct |
42 |
Correct |
1 ms |
724 KB |
Output is correct |
43 |
Correct |
1 ms |
1364 KB |
Output is correct |
44 |
Correct |
1 ms |
1236 KB |
Output is correct |
45 |
Correct |
1 ms |
1236 KB |
Output is correct |
46 |
Correct |
1 ms |
1248 KB |
Output is correct |
47 |
Correct |
1 ms |
2260 KB |
Output is correct |
48 |
Correct |
2 ms |
2388 KB |
Output is correct |
49 |
Correct |
2 ms |
2260 KB |
Output is correct |
50 |
Correct |
1 ms |
2260 KB |
Output is correct |
51 |
Correct |
2 ms |
4436 KB |
Output is correct |
52 |
Correct |
2 ms |
4436 KB |
Output is correct |
53 |
Correct |
2 ms |
4436 KB |
Output is correct |
54 |
Correct |
2 ms |
4436 KB |
Output is correct |
55 |
Correct |
3 ms |
8532 KB |
Output is correct |
56 |
Correct |
3 ms |
8532 KB |
Output is correct |
57 |
Correct |
3 ms |
8512 KB |
Output is correct |
58 |
Correct |
3 ms |
8532 KB |
Output is correct |
59 |
Correct |
1 ms |
212 KB |
Output is correct |
60 |
Correct |
0 ms |
212 KB |
Output is correct |
61 |
Correct |
0 ms |
316 KB |
Output is correct |
62 |
Correct |
0 ms |
212 KB |
Output is correct |
63 |
Correct |
0 ms |
212 KB |
Output is correct |
64 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
288 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Runtime error |
2 ms |
1492 KB |
Execution killed with signal 11 |
12 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
316 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
320 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
316 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
320 KB |
Output is correct |
20 |
Correct |
0 ms |
324 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
452 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
576 KB |
Output is correct |
36 |
Correct |
1 ms |
468 KB |
Output is correct |
37 |
Correct |
1 ms |
596 KB |
Output is correct |
38 |
Correct |
1 ms |
468 KB |
Output is correct |
39 |
Correct |
1 ms |
724 KB |
Output is correct |
40 |
Correct |
1 ms |
724 KB |
Output is correct |
41 |
Correct |
1 ms |
724 KB |
Output is correct |
42 |
Correct |
1 ms |
724 KB |
Output is correct |
43 |
Correct |
1 ms |
1364 KB |
Output is correct |
44 |
Correct |
1 ms |
1236 KB |
Output is correct |
45 |
Correct |
1 ms |
1236 KB |
Output is correct |
46 |
Correct |
1 ms |
1248 KB |
Output is correct |
47 |
Correct |
1 ms |
2260 KB |
Output is correct |
48 |
Correct |
2 ms |
2388 KB |
Output is correct |
49 |
Correct |
2 ms |
2260 KB |
Output is correct |
50 |
Correct |
1 ms |
2260 KB |
Output is correct |
51 |
Correct |
2 ms |
4436 KB |
Output is correct |
52 |
Correct |
2 ms |
4436 KB |
Output is correct |
53 |
Correct |
2 ms |
4436 KB |
Output is correct |
54 |
Correct |
2 ms |
4436 KB |
Output is correct |
55 |
Correct |
3 ms |
8532 KB |
Output is correct |
56 |
Correct |
3 ms |
8532 KB |
Output is correct |
57 |
Correct |
3 ms |
8512 KB |
Output is correct |
58 |
Correct |
3 ms |
8532 KB |
Output is correct |
59 |
Correct |
1 ms |
212 KB |
Output is correct |
60 |
Correct |
0 ms |
212 KB |
Output is correct |
61 |
Correct |
0 ms |
316 KB |
Output is correct |
62 |
Correct |
0 ms |
212 KB |
Output is correct |
63 |
Correct |
0 ms |
212 KB |
Output is correct |
64 |
Correct |
1 ms |
212 KB |
Output is correct |
65 |
Correct |
1 ms |
212 KB |
Output is correct |
66 |
Correct |
1 ms |
212 KB |
Output is correct |
67 |
Correct |
0 ms |
212 KB |
Output is correct |
68 |
Correct |
1 ms |
320 KB |
Output is correct |
69 |
Correct |
1 ms |
212 KB |
Output is correct |
70 |
Correct |
0 ms |
212 KB |
Output is correct |
71 |
Correct |
0 ms |
212 KB |
Output is correct |
72 |
Correct |
0 ms |
212 KB |
Output is correct |
73 |
Correct |
1 ms |
212 KB |
Output is correct |
74 |
Correct |
1 ms |
212 KB |
Output is correct |
75 |
Correct |
1 ms |
212 KB |
Output is correct |
76 |
Correct |
0 ms |
212 KB |
Output is correct |
77 |
Correct |
0 ms |
212 KB |
Output is correct |
78 |
Correct |
1 ms |
212 KB |
Output is correct |
79 |
Runtime error |
163 ms |
524288 KB |
Execution killed with signal 9 |
80 |
Halted |
0 ms |
0 KB |
- |