How does modular code help in interviews?
It shows the interviewer that you understand software architecture. Furthermore, if your main algorithm is isolated in a function, you can write small test cases to prove it works.
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More FAQs in Writing Testable Functions for Competitive Programming
Mixing input/output handling with algorithmic logic makes the code difficult to read, hard to test with custom inputs, and harder to debug.
It is a design principle where a program is divided into distinct sections, each handling a specific task (e.g., separating data parsing from algorithmic computation).
A pure function is a function that always produces the same output for the same input and has no side effects (like modifying global variables or printing to the console).
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