Merge pull request #1 from DCHSProgrammingClub/master

updating my repo
Made problem 40 somewhat faster (74 minutes and 51 seconds)...
added isPalindrome for Strings, added my own version of problem 23, added problem 36
added problem 36 to problem solved
Merge origin/master into 42maelstrom-master
Merge pull request #15 from singhalmanu9/42maelstrom-master

added problem 36, several other methods