problem 1-2 v1.0 char* doesn't compile in java and fail
problem 1-3 v0.0 time n space n not add comments yet
problem 1-3 v0.1 time n space n added comments
program 1-3 v0.2 time n space 1 no copy of str just check appearance and upadate
problem v1.0 time n space 1 but I cannot compile them..
Merge branch 'master' of https://github.com/thinkdmeanin/CTCI_Chapter_1_Git