LeetCode | 1 bit and 2 bit Characters | C++ | Golang | Rust
Автор: AlgorithmsUntilRED
Загружено: 2025-11-18
Просмотров: 82
In this video, I explain the LeetCode problem 717. 1-bit and 2-bit Characters and walk through an efficient solution with
⏱ Time Complexity: O(N)
💾 Space Complexity: O(1)
You’ll learn how to decode the bit sequence step-by-step, understand how 1-bit and 2-bit characters work, and why the last bit must be checked carefully.
I also show the intuition using diagrams and implement the final Rust solution live.
⏱ Timestamps
00:00 – Problem Breakdown & Logic
03:42 – C++ Implementation
05:42 – Golang Implementation
07:12 – Rust Implementation
What you’ll learn:
1. How 1-bit and 2-bit encoding works (0 → one-bit, 10/11 → two-bit)
2. How to traverse the bit array efficiently
3. Edge cases that trick most beginners
4. Why incrementing the pointer by 1 or 2 solves the entire problem
5. How to write a clean and optimal O(N)/O(1) solution
Perfect for LeetCode practice, coding interviews, and building strong problem-solving intuition.
If you find this helpful, don’t forget to like, subscribe, and comment your next problem request! 🔥
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