Add leetcode solution 194

[AHVSSATHVIK]

Pull Request: Add LeetCode Solution for Issue #194

Description

This pull request adds a new solution as part of the beginner-friendly task
“Submit your first PR by solving a Leetcode problem” (Issue #194).

• Problem Solved:
• Approach Used:
• Language: C++ / Python / Java / JS (choose yours)

Put check marks:

• Added problem & solution under correct topic.
• Specified Space & Time complexity.
• Difficulty level, tags & notes added.

How Has This Been Tested?

• Tested with sample inputs.
• Verified on LeetCode online judge.

Guidelines Followed:

• Code follows project style.
• Self-reviewed.
• Proper comments added.
• No new warnings introduced.

Closes #194