diff --git a/codes/rust/chapter_computational_complexity/worst_best_time_complexity.rs b/codes/rust/chapter_computational_complexity/worst_best_time_complexity.rs
index 179d358d..a5a979c5 100644
--- a/codes/rust/chapter_computational_complexity/worst_best_time_complexity.rs
+++ b/codes/rust/chapter_computational_complexity/worst_best_time_complexity.rs
@@ -4,11 +4,6 @@
  * Author: xBLACICEx (xBLACKICEx@outlook.com)
  */
 
-// rand = "0.8.5"
-// to compilse and run this singile file need:
-// 1. cargo install cargo-single
-// 2. cargo single run worst_best_time_complexity.rs
-
 use rand::seq::SliceRandom;
 use rand::thread_rng;