LeetCode 1346: Check If N and Its Double Exist

In this video, we solve LeetCode 1346: Check If N and Its Double Exist, a fun and intriguing problem that tests your skills in arrays and hashmaps. 🧩✨ This problem is a great way to practice efficient searching and logical thinking!
Here’s what we cover:
Understanding the problem statement and key constraints.
Developing an optimal solution using a hash-based approach.
Step-by-step coding walkthrough with detailed explanations.
Testing our solution on edge cases to ensure robustness.
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