Group Anagrams | AlgoChronicle

Step 1

Know these before you start

Tick what you already know

Concept video

Step 2

Try it on paper

5–10 minutes, no code yet

ProblemProblem statementGiven an array of strings strs, group the anagrams together. Return the answer in any order.Read

Problem Statement

Given an array of strings strs, group the anagrams together. Return the answer in any order.

Imported 2026-10-09 from NeetCode auto-sync (reviewed).

Input / Output

Input:  strs = ["eat","tea","tan","ate","nat","bat"]
Output: [["bat"],["nat","tan"],["ate","eat","tea"]]

Step 6

Get it accepted

All test cases pass

Step 7

Review it so it sticks

Re-solve from memory after

Solve it yourself before you look

Reading the solution first feels like progress, but it makes the next similar problem — and the interview version — much harder, because you skipped the part where you figure it out. Give it an honest 20–30 minutes. Stuck? Re-read the pattern, watch the concept video, or try the brute force first.

Hidden: approach · solution code · optimal solution

Revising this one?

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→Say the pattern out loud, not just the code
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