Free cstr to avoid memory leak in 01.02
Merge branch '01.02'
Add 01.04 CPP solution
Add 01.05 CPP solution
Add 01.06 solution
Merge branch '01.04'
Merge branch '01.05'
Merge branch '01.06'
Merge pull request #18 from cookieisaac/Chapter1

Merge solution 01.03 to 01.06 to master