Changed the output

[sreejithsankar55]

Fix: #161

Tested and fixed the output in the file subgraph.cpp and subgraph.expected

[anadon]

Could you be more literal in what is incorrect? It looks like you're changing documentation and no code.

[sreejithsankar55]

Could you be more literal in what is incorrect? It looks like you're changing documentation and no code.
@anadon The output in the documentation of subgraph.expected and the commented part of subgraph.cpp is wrong when I tested the code locally, it produces a different output rather than the expected. Hence, I changed it to exactly what the code produces as the output.

[anadon]

I have serious misgivings about correctness here. Those examples are old and when they were originally made they were very likely validated. It it possible internal behavior has changes or there is a bug, but you're going to need to provide a test case.

How are you generating your results? Please include your code.