update readme

Author: Joshua Goller

README.md

@@ -1,11 +1,9 @@
 # programming-problems
-Solutions to all of my [LeetCode problems](https://leetcode.com/jsgoller1/), programming competition and interview questions, and some algorithms / data structures implemented for practice. Problems that I need to reattempt are listed in `unsolved/unsolved.md`.
+Solutions to all of my programming competition and interview questions, and some algorithms / data structures implemented for practice.
 
 ## Contents
 - [algos](algos/) - algorithms and data structures implemented for practice / training (mostly from Skiena's _Algorithm Design Manual_, Wikipedia, or research papers)
 - [codeforces](codeforces/), [exercism](exercism), [hackerrank](hackerrank/), [leetcode](leetcode/) - solutions to problems from various programming problem websites
-- [failures](failures/) - things I tried as experiments that didn't work (or haven't worked yet)
-- [unsolved](unsolved/) - problems I tried and haven't finished yet
 
 ## Building
 To actually run code in this repo, I use: