data/hamilton/graph_structure/hard/graph101.txt

12 31
2 4
2 11
10 4
6 3
5 7
6 1
9 11
6 7
8 1
2 1
6 10
0 2
3 4
0 8
1 10
2 6
1 0
3 2
0 5
9 5
11 7
0 6
6 9
9 7
10 11
11 6
4 7
0 4
8 3
8 9
3 11