#formatting

5 formatting interview questions, asked at Airbnb, Amazon, Microsoft and 2 more companies. Last asked Sep 2026.

Rebuild a task tree from parent-child records and print itCodingYou get a list of task records, each naming a task and its parent. Rebuild the hierarchy of tasks and subtasks and print it as a text tree with connector characters, in the exact…
Last asked Sep 2026
Text box formatterCodingImplement formatboxes(sentences: liststr) - liststr. Each sentence is a non-empty string of printable ASCII characters and spaces. Draw every sentence in its own ASCII box and…
Last asked Sep 2026
Format a forest of nested commentsCodingGiven comments where each one may reply to another, format the whole forest of threads so that every reply appears nested under its parent.
Last asked Aug 2026
Format bytes as a hex and ASCII dumpCodingWrite a function that prints a byte buffer as a hex dump, like xxd or hexdump -C: each line shows the offset, a fixed number of bytes in hex, and the same bytes as ASCII with…
Last asked Aug 2026
Make LLM output match a word processor's formattingAI system designA writing assistant inside a word processor generates text that must fit the document's formatting: styles, headings, lists, tables. Design how you get the model to produce…
Last asked Jan 2026