On branch master
Your branch is up-to-date with 'origin/master'.

Changes to be committed:
new file:   nccucs-assignment-2/answers/problem4.txt
modified:   nccucs-assignment-2/graph/Graph.java
modified:   nccucs-assignment-2/test/GraphTest.java
modified:   nccucs-assignment-2/test/ImplementationTests.java