Initial commit
initial commit
modified README
solved problem 13, added small comment in p11
added solution to problem 14
solved problem 15
solved problem 16
solved problem 17
added recursion in num_to_phrase
solved problem 18
solved problem 19
solved problem 20
solved problem 21
solved problem 22
solved proble 23
solved problem 24
solved problem 25
solved problem 26
renamed author and committer emails