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Two-Sum to match target #12883

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This PR adds the solution to the classic "Two Sum" problem using a hash map for optimized lookup. The code includes:
Problem statement as a comment
Optimized solution using a dictionary (O(n) time)
A test case under the main block
Proper docstrings for clarity
Problem Summary

Given an array nums and an integer target, return the indices of the two numbers such that they add up to target.

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Hi! Kindly requesting a review for this PR when convenient. Thanks

@algorithms-keeper algorithms-keeper bot added the tests are failing Do not merge until tests pass label Aug 6, 2025
@algorithms-keeper algorithms-keeper bot added the require tests Tests [doctest/unittest/pytest] are required label Aug 6, 2025
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Click here to look at the relevant links ⬇️

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@@ -0,0 +1,24 @@
def two_sum(nums: list[int], target: int) -> tuple[int, int] | None:

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As there is no test file in this pull request nor any test function or class in the file interview-bootcamp/Two-Sum.py, please provide doctest for the function two_sum

@algorithms-keeper algorithms-keeper bot added the awaiting reviews This PR is ready to be reviewed label Aug 6, 2025
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