1original graph:
20 --> 3 2 3
31 --> 3
42 --> 0
53 --> 2
61(0,3) 2(0,2) 3(0,3) 4(1,3) 5(2,0) 6(3,2)
7
8removing edges connecting 0 to 3
90 --> 2
101 --> 3
112 --> 0
123 --> 2
132(0,2) 4(1,3) 5(2,0) 6(3,2)
14removing edges with weight greater than 3
150 --> 2
161 -->
172 -->
183 -->
192(0,2)
20