CodingEasycod-g959

Subject MathLevel Entry–Mid~12 minCommon in Algorithms & data structures interviewsIndustries Software development

Question

Given a non-negative integer n, return its binary representation as a string without any '0b' prefix and without leading zeros, except that 0 itself returns '0'. For example 13 returns '1101'. You may not use Python's bin() builtin; build the digits yourself.

Implement

to_binary(n: int) → str

Examples

in[13]out"1101"

What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

Learn the concepts

Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.

Run or narrate your approach, then ask the coach.