Available question text
Given a permutation of lowercase letters defining an alien alphabet, verify the words are lexicographically sorted by mapping each character to its rank and comparing adjacent words character-by-character (treating a shorter word that is a prefix as smaller).
Related questions
Continue with questions that share topics or the same question type.
- Alien Dictionary
Coding · Array · Breadth-First Search · Depth-First Search
- Alien Dictionary (hard problem from leetcode)
Coding
- leetcode medium to hard questions, one was custom ds based on priority queue, alien dictionary
Coding
- The "Alien Dictionary" problem is a classic LeetCode question (specifically LeetCode Problem 269) that requires determining the alphabetical order of characters in a new language given a list of words sorted according to that language's rules. This is typically solved using graph theory and topological sorting (Kahn's algorithm or DFS).
Coding
Sources · 1 reference
These records explain where the question appears. A company tag or candidate report does not guarantee a future interview question.
Hello Interview · 1 record
Meta
Leetcode 953. Verifying an Alien Dictionary
Interview reported: Jan 9, 2025 · 1 source report
MID_LEVEL
Source snapshot: Nov 12, 2026
View source