OPtimisation changes
Merge branch 'master' of
https://github.com/archanmishra/InterViewStreet.git

Signed-off-by: Archan Mishra <archanmishra@gmail.com>
solution to hacker rank problems

insertion sort 1 -3

Signed-off-by: Archan Mishra <archanmishra@gmail.com>