Initial commit for solution of task_2
Solution for task_2 'outdated deal'
Realization for outdated_deal implies only filtering, realizations with sorting moved to separate files
solutions for task_2
correcting filesort
was replaced own copying algorithm to standard algorithm copy_n
creating library for work with messages
correcting deal library
some correction for solution of task_2
Correcting mistake in solution of task_2
Correcting solution of task_2
Merge pull request #113 from habibutsu/master

adding Solution for task_2 from habibutsu