homework2: add vector pass-by-reference; remove sorting
Homework3 initial commit. Add folder structure; add solutions.
homework3: add root CMakeLists.txt
homework3: add tests/CMakeLists.txt
homework3: fixes to make it compile under vs2008
homework2: file renaming
homework2: make it compiler under vs2008
homework3: uncomment debug messages
minor changes
homework3: add _gcc_gen
homework3: renaming input files
Merge pull request #122 from ailyasov/master

adding homework 3 from ailyasov