add two sum solution

python/two-sum.py

@@ -0,0 +1,14 @@
+# Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.
+
+# You may assume that each input would have exactly one solution, and you may not use the same element twice.
+
+# You can return the answer in any order.
+
+def two_sum(nums, target):
+    hashMap = {}
+    for index, num in enumerate(nums):
+        complement = target - num
+        if complement not in hashMap:
+            hashMap[num] = index
+        else:
+            print([hashMap[complement], index])