Text Justification: which companies ask it and how to practise

Text Justification is a Hard problem that 35 companies are reported to ask. This page shows who, how often and how recently, what the question tests, and how to practise it out loud with an interviewer who asks follow-ups. We link to the original problem statement instead of copying it.

Which companies ask Text Justification?

Public company lists attribute Text Justification, a Hard problem, to 35 companies. The most frequent askers are Airbnb, Karat and SIG. 10 reports are from the last six months. It mainly tests array, string and simulation. Use this as a practice guide, not a promise.

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Who asks Text Justification

35 companies appear in the public lists for this question. By how often each is reported: Airbnb (very often), Karat (very often), SIG (very often), Sentry (very often), Visa (very often), Capital One (very often), Robinhood (very often), Roblox (very often), Coursera (very often) and MongoDB (very often), and 25 more. 10 of them were reported in the last six months, Airbnb, Capital One and Robinhood among them.

These are candidate reports collected in public lists, not statements from the companies. They are a good guide to what to practise and a poor guide to what you will be asked: interviewers change questions, and the same company asks different questions by team and level. Last reviewed 25 October 2026.

What Text Justification tests

It is rated Hard, so a correct brute force with a clear path to the better idea is a good result; interviewers watch how you reason when the answer is not obvious and how you use their hints.

Arrays are the default container, so the interviewer is watching how you index, how you avoid a second full pass, and whether you notice when sorting or a hash map would remove a nested loop.

String problems test careful index handling and knowing which characters you may assume. Say out loud whether the input is ASCII, whether case matters, and what an empty string should return.

Simulation problems mean following the rules exactly. The test is clean code and handling every corner of the rules, not a clever trick.

How to practise it

Do not just solve it silently. In a real interview you explain the approach before you code, write while you talk, and defend the solution to follow-ups. Set a timer, say the brute force and its cost first, then improve it, and finish by stating the time and space complexity and two edge cases you tested.

On giveinterview you can take this kind of question as a spoken interview: the AI interviewer opens with the problem, watches you code, asks cross-questions and ends with a scorecard. Your first 3 single-question interviews are free for life, every interview report is free, and a new account also gets 6 welcome credits.

Read the original statement here: https://leetcode.com/problems/text-justification/ (opens the publisher's page). The statement is theirs; we do not reproduce it.

Questions to practise next

If you can solve Text Justification, try these next, chosen because they share its main topic and many of the same companies: Two Sum (Easy), Merge Intervals (Medium), Best Time to Buy and Sell Stock (Easy), Number of Islands (Medium), Group Anagrams (Medium) and Trapping Rain Water (Hard). Each has its own page in the questions list.

Frequently asked questions

Is Text Justification asked at Amazon?

Amazon appears in the public lists for Text Justification, reported sometimes. Treat that as a reason to practise it, not a promise you will be asked it.

How hard is Text Justification?