Refactor Hamiltonian Cycle to works with various empty routes in tours

[ecsanchesjr]

Test case where error ocurrs.

RED
Tour:
14
4
1
7
8
15
22
1
18
19
2
11
1
10
21
6
13
20
3
1
16
12
5
17
1
9

BLUE
Tour:
1
1
15
6
10
13
22
9
18
8
20
14
4
1
2
5
16
21
12
7
1
19
11
3
17
1