added ab check solution in ruby

Kyle Maune · Kyle Maune · commit 26084ebc6183 · 2014-10-31T11:26:30.000-07:00
diff --git a/Ruby Solutions/Easy/AB_check.rb b/Ruby Solutions/Easy/AB_check.rb
@@ -0,0 +1,14 @@
+# AB_check.rb
+# splashinn
+
+#Determine if two characters are separated a specific way in the string - return true if characters a and b are separated by exactly 3 places. 
+def abCheck(str)
+	return false if(str.include?('a') == false || str.include?('b') == false || str.rindex('b') < str.rindex('a'))
+	return str.rindex('b') - str.rindex('a') == 4
+	
+end
+
+p abCheck("bzzza") #false
+p abCheck("after badly") #false
+p abCheck("Laura sobs") #true
+p abCheck("aaaaddddd") #false
