From c0c27153cdd632dd824b4a698f28ae29233483c6 Mon Sep 17 00:00:00 2001
From: David Leal <halfpacho@gmail.com>
Date: Wed, 26 Apr 2023 19:08:19 -0600
Subject: [PATCH] fix: self-test example not working

---
 CONTRIBUTING.md | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 49337d79562..13202ce4e76 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -81,8 +81,9 @@ assert(backtracking::subset_sum::number_of_subsets(0, array1) ==
 3. Small C++ program that showcases and explains the use of tests.
 
 ```cpp
-#include <vector>   /// for std::vector
-#include <cassert>  /// for assert
+#include <iostream>  /// for IO operations
+#include <vector>    /// for std::vector
+#include <cassert>   /// for assert
 
 /**
  * @brief Verifies if the given array
@@ -100,7 +101,7 @@ bool is_number_on_array(const std::vector<T> &arr, const int &number) {
             return true;
         }
         else {
-            return false;
+            // Number not in the current index, keep searching.
         }
     }