Question 1

How many LeetCode questions does Affirm ask in interviews?

Accepted Answer

Affirm has 10 known LeetCode interview questions. The difficulty breakdown is 1 Easy, 6 Medium, and 3 Hard problems.

Question 2

What are the most common topics in Affirm coding interviews?

Accepted Answer

The most frequently asked topics at Affirm are Array (7 questions), Hash Table (6 questions), String (5 questions), Design (3 questions), Math (2 questions). Focus on these topics to maximize your preparation.

Question 3

How should I prepare for a Affirm coding interview?

Accepted Answer

Start with the most frequently asked Affirm problems on CodeJeet, sorted by frequency. Focus on Medium difficulty first since Affirm asks 6 Medium problems. Practice the top topics: Array, Hash Table, String.

Title	Difficulty	Acceptance	Frequency	Topics
Insert Delete GetRandom O(1)	Medium	55.3%	100.0%	ArrayHash TableMath+2
Shortest Uncommon Substring in an Array	Medium	50.0%	86.9%	ArrayHash TableString+1
Parse Lisp Expression	Hard	53.5%	79.3%	Hash TableStringStack+1
Group Anagrams	Medium	72.2%	69.7%	ArrayHash TableString+1
Insert Delete GetRandom O(1) - Duplicates allowed	Hard	36.4%	69.7%	ArrayHash TableMath+2
String Compression	Medium	59.6%	66.3%	Two PointersString
Design Hit Counter	Medium	69.6%	62.1%	ArrayBinary SearchDesign+2
Valid Anagram	Easy	67.8%	62.1%	Hash TableStringSorting
Coin Change	Medium	48.0%	56.7%	ArrayDynamic ProgrammingBreadth-First Search
Optimal Account Balancing	Hard	50.3%	49.0%	ArrayDynamic ProgrammingBacktracking+2

Affirm

Difficulty Distribution

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