diff --git a/plan.txt b/plan.txt
index bb8cef9..02c465a 100644
--- a/plan.txt
+++ b/plan.txt
@@ -351,9 +351,6 @@ Bloom Filter
 Fast Fourier Transform
     - http://jakevdp.github.io/blog/2013/08/28/understanding-the-fft/
 
-C (for basis of C)
-C++ (for interview answers)
-
 Machine Learning:
     - great course: https://www.coursera.org/learn/machine-learning
     - http://www.analyticsvidhya.com/blog/2016/04/neural-networks-python-theano/