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: <Your Problem Name>
• Approach Used: <Approach>
• Language: C++ / Python / Java / JS (choose yours)

Put check marks:

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

How Has This Been Tested?

• [x] Tested with sample inputs.
• [x] Verified on LeetCode online judge.

Guidelines Followed:

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

Closes #194