Stack challenge
Build the stack challenge
Initial commit
Reademe
Readme modified.
Update README.md
Delete linked_list.py
Delete stack.py
Delete test_linked_list.py
Delete test_stack.py
Delete .gitignore~
Merge pull request #1 from im-auld/proper_parens

Proper Parens
Wrote the weekend coding challenge
Modified README file regarding week1 coding challenge.
Modified proper_parenthetics to include more cases for when there are even number of parenthsis but not matching. There is still error when matching parenthesis dont come in order.
merging due to conflict error
Removed all the codes I did not work with Ian aka linked_list
Merge pull request #3 from im-auld/queue

Queue
Merge branch 'dll' of https://github.com/im-auld/data_structures into dll
Merge pull request #4 from im-auld/dll

Dll