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Tools
[SecureCRT] How to Set Up a Serial Console Connection
Jason Yang · 02 Dec, 2025
Set up a serial console connection in SecureCRT to HP servers (DL380/DL580, HP-UX) — the exact baud rate, data bits, parity, and flow-control settings.
Blog posts — page 19
Coding Interview
Why is Binary Search O(log n)?
Jason Yang · 02 Dec, 2025
Binary Search runs in O(log n) because it halves the search space every step. Here's the intuition, the math proof, and how it compares to linear search.
Coding Interview
153. Find Minimum in Rotated Sorted Array
Jason Yang · 02 Dec, 2025
Find Minimum in Rotated Sorted Array (LeetCode 153): the O(log n) binary search that locates the rotation pivot, explained step by step with examples.
Programming Language
Adding a gRPC Endpoint to order-service: A Practical Guide
Jason Yang · 02 Dec, 2025
Add a gRPC endpoint to a Spring Boot order-service: define .proto files, generate stubs, implement the RPC logic, and expose a new CreateOrder API.
Coding Interview
Dynamic Programming Explained: The Missing Link with Divide & Conquer
Jason Yang · 01 Dec, 2025
Dynamic Programming demystified: at its core, DP is just Divide and Conquer plus memory. See the connection and it gets far easier to explain in interviews.