LLD Domain Modeling: Business Rules & Invariants (The Rules Your System Must Never Break)
In the previous posts, we learned about: Entities Value Objects These help us model the business world. But a question still remains: Why do these obj…
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The Amazon Bar Raiser Isn't Testing Your Solution. It's Testing the Follow Up.
You're 15 minutes into an Amazon coding round. You've identified the pattern, your solution handles the examples, you're about to submit. Then the int…
Algorithmic intuition matters more than problem count in coding interviews
Two engineers prep for the same cycle. One solves more than 500 problems and freezes when the medium doesn't look like anything from the practice list…