Amber Lynn - Edges - arrays_equals Assignment

lib/array_equals.rb

@@ -1,5 +1,96 @@
 # Determines if the two input arrays have the same count of elements
 # and the same integer values in the same exact order
 def array_equals(array1, array2)
-  raise NotImplementedError
+  if array1.nil? && array2.nil?
+    return true
+  end
+
+  if array1 == nil || array2 == nil
+    return false
+  end
+
+  if array1.length != array2.length
+    return false
+  end
+
+matching_elem = Hash.new
+
+i = 0
+while i < array1.length
+  elem = array1[i]
+  if matching_elem[elem]
+    matching_elem[elem] += 1
+  else
+    matching_elem[elem] = 1
+  end
+  i += 1
+end
+
+i = 0
+while i < array2.length
+  elem = array2[i]
+  if matching_elem[elem]
+    matching_elem[elem] -= 1
+  elsif matching_elem[elem] && matching_elem[elem] < 0
+    return false
+  else
+    return false
+  end
+  i += 1
+end
+
+return true
+# x = ""
+# same_count =
+# same_elements =
+# elements_match = 0
+# first_array_counter = 0
+# second_array_counter = 0
+#
+# array1.each_index do |i|
+#   i += 1
+#   first_array_counter += i
+# end
+# print first_array_counter
+#
+# array2.each_index do |i|
+#   i += 1
+#   second_array_counter += i
+# end
+# print second_array_counter
+#
+# # list_one = array1.size
+# # list_two = array2.size
+#
+# if first_array_counter == second_array_counter
+#   same_count = true
+# elsif array1 == nil && array2 == nil
+#   same_elements = true
+# elsif array1 == nil && array2 != nil
+#   same_elements = false
+# elsif array2 == nil && array1 != nil
+#   same_elements = false
+# else
+#   same_count = false
+# end
+#
+# if same_count == true
+#   first_array_counter.times do |i|
+#     if array1[i] == array2[i]
+#       elements_match += 1
+#     end
+#   end
+# end
+#
+# if elements_match == (first_array_counter) && elements_match == (second_array_counter)
+#   same_elements = true
+# end
+#
+# if same_count == same_elements
+#   x = true
+# else
+#   x = false
+# end
+#
+# return x
 end