Solve two-sum

Author: hypoxisaurea

two-sum/hypoxisaurea.py

@@ -0,0 +1,15 @@
+from typing import List
+
+class Solution:
+    def twoSum(self, nums: List[int], target: int) -> List[int]:
+        lookup = {}
+
+        for i, num in enumerate(nums):
+            diff = target - num
+
+            if diff in lookup:
+                return [lookup[diff], i]
+                
+            lookup[num] = i
+
+        raise ValueError('No answer')