From bd3d94931750e466d29fddef5fa20575384a3e6f Mon Sep 17 00:00:00 2001
From: "Ahmed M. Abd EL-latif" <ahmed.abdelatife@gmail.com>
Date: Mon, 14 Feb 2022 14:23:47 +0200
Subject: [PATCH] 1st day

---
 ImplementstrStr.rb | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 ImplementstrStr.rb

diff --git a/ImplementstrStr.rb b/ImplementstrStr.rb
new file mode 100644
index 0000000..4710a70
--- /dev/null
+++ b/ImplementstrStr.rb
@@ -0,0 +1,13 @@
+def str_str(haystack, needle)
+    return 0 if (haystack.empty? && needle.empty?) || (haystack.empty? == false && needle.empty?)
+    (0..haystack.size-1).each do |i|
+      if haystack[i..i+needle.size-1] == needle
+        return i
+      end
+    end
+    return -1
+    
+    
+end
+
+puts str_str("aaaa","bba")
\ No newline at end of file