1) setting up PyCharm
2) solved few problems in Python
3) removed Haskell solutions
solved problem 6
added more info about solution
found a much better O(1) solution for problem 6
initial solution for problem 10... needs to be optimized
naive implementation for problem 9
initial solution for problem 14
fast solution for problem 15
solved a problem 16 while avoiding implementing a proper algorithm...
need to revisit it later
solved problem 18
solved problem 28
solved problem 6