1original graph:
20 <--> 3 3 2
31 <--> 3
42 <--> 0 3
53 <--> 0 0 1 2
61(0,3) 2(0,3) 3(1,3) 4(2,0) 5(3,2)
7
8removing edges connecting 0 and 3
90 <--> 2
101 <--> 3
112 <--> 0 3
123 <--> 1 2
133(1,3) 4(2,0) 5(3,2)
14removing edges with weight greater than 3
150 <-->
161 <--> 3
172 <-->
183 <--> 1
193(1,3)
20