From 6c6879fe52623997ce80872fd9c55b3174e4b414 Mon Sep 17 00:00:00 2001
From: northernSage <gfvante@gmail.com>
Date: Thu, 18 Feb 2021 00:44:48 -0300
Subject: [PATCH] remove unused headers and add comments

---
 sorting/bubble_sort_2.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/sorting/bubble_sort_2.c b/sorting/bubble_sort_2.c
index ef54d3d9..03dc36b4 100644
--- a/sorting/bubble_sort_2.c
+++ b/sorting/bubble_sort_2.c
@@ -10,10 +10,9 @@
  * @author [Gabriel Fioravante](https://github.com/northernSage)
  */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <stdbool.h>
+#include <stdlib.h>   // for rand() calls
+#include <assert.h>   // for testing assert(<expr>)
+#include <stdbool.h>  // for boolean values: true, false  
 
 #define MAX 20