Leetcode 2: Add Two Numbers
Question
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Leetcode 1: Two Sum
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Python Notes: Misc
Sort Built-in function sorted(iter) returns a new sorted list from the items in iterable. It takes two optional parameters: [Read More] -
Python Notes: Path and Directory
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Python Notes: Web Service
Standard Python libraries [Read More] -
Python Notes: Modules
Modules sys sys.path: Python’s search path. [Read More] -
Python Notes: Collections
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Build the Cloud: Customer Adoption for Infrastructure-as-a-Service
Since 2006, Amazon’s cloud business, Amazon Web Services, has expanded from launching some virtual machines and offering static file storage to everything. However, the growth of customer base and revenue is still impressive. Revenue growth is still over 40% YoY for a 17 billion dollar business (12 months ending December... [Read More] -
AWS Well-Architected Framework: A Note
This is the note I made when studying AWS Well-Architected Framework. [Read More] -
Design Consideration of a Workflow Engine
In a distributed, service-oriented software system, it is often required to achieve some goals with a combination of one or more operations, such as API calls, database operations, or others. The series of operations are often called “workflows” and the software designed to drive the workflows to completion is called... [Read More] -
Remove Non-Deductible Traditional IRA Contribution
If you make a traditional IRA contribution before doing your tax for the year hoping you can deduct the contribution, but only to find your income is too high to deduct the contribution, you will want to remove non-deductible contributions from the Traditional IRA and invest the money in a... [Read More] -
Backdoor Roth
This is the notes I gathered when researching how to make Backdoor Roth contribution, how to gather tax documents and report contributions and conversions in tax filing using TurboTax. The content is modified from thefinancebuff.com. See original content in reference links at the end. [Read More] -
GoLang: Formatted Printing
Formatted printing in Go uses a style similar to C’s printf family but is richer and more general. The functions live in the fmt package and have capitalized names: fmt.Printf, fmt.Fprintf, fmt.Sprintf and so on. The string functions (Sprintf etc.) return a string rather than filling in a provided buffer.... [Read More] -
GoLang: Memory Allocation
Go has two allocation primitives, the built-in functions new and make. Composite literal is a special way of allocating new instances every time it is evaluated. [Read More] -
GoLang: Error Handling
Go’s preferred way to deal with errors is through return values, not exceptions. Go programs express error state with error values. The error type is a built-in interface: [Read More]