# sum

class Solution: def twoSum(self, nums: List[int], target: int) -> List[int]: numToIndex = {} for i, num in enumerate(nums): if target - num in numToIndex: return numToIndex[target - num], i numToIndex[num] = i

**Here is what the above code is Doing:**

1. We create a dictionary called numToIndex.

2. We loop through the nums list.

3. For each number, we check if target – num is in numToIndex.

4. If it is, we return the index of target – num and the current index.

5. If it isn’t, we add the current number and its index to numToIndex.