Create TwoSum.py

Author: OlgaEle

TwoSum.py

@@ -0,0 +1,21 @@
+from typing import List
+
+class Solution:
+    def twoSum(self, nums: List[int], target: int) -> List[int]:
+        if not (2 <= len(nums) <= 10**4):
+            raise ValueError("nums length must be between 2 and 10^4")
+        if not (-10**9 <= num <= 10** 9 for num in nums):
+            raise ValueError("nums must be between -10^9 and 10^9")
+        if not (-10**9 <= target <= 10**9):
+            raise ValueError("target must be between -10^9 and 10^9")
+        result = []
+        for i in range(len(nums)):
+            for j in range(i, len(nums)):
+                if j != i:
+                    defi = nums[i]
+                    defj = nums[j]
+                    a = defi + defj
+                    if a == target:
+                        result.append(i)
+                        result.append(j)
+        return result