Airbnb Coding Interview Questions
32 Airbnb coding interview problems with full optimal solutions — 1 easy, 20 medium, 11 hard. Every problem ships with multiple approaches (brute-force first, then the optimal), complexity tables for each, company-specific tips on what an Airbnb interviewer values, and a FAQ section.
Showing 1 problem of 32
- #125easyfoundational
125. Valid Palindrome
After lowercasing and removing non-alphanumeric chars, is the string a palindrome? Airbnb asks this to test two-pointer-in-place rather than the easier O(n) extra-space approach.
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