Intuit Software Engineer Coding & Algorithms Interview Questions

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Intuit

Medium

Software Engineer

Sum palindrome-change costs over all substrings

You are given a DNA string dna consisting only of characters A, C, G, T. For any substring dna[l..r], define its palindrome modification cost as the m...

Find largest filename from ls -l output

You are given a multi-line string (via stdin) that represents the output of ls -l, with one entry per line. Each file line follows the typical ls -l f...

Solve word segmentation and React palindrome validation

Part A — String segmentation: Given a non-empty string s and a dictionary of valid words, design an algorithm to determine whether s can be segmented ...

Implement LRU, Extend to LFU, Analyze Complexity

Implement an in-memory Least Recently Used (LRU) cache with capacity N that supports get(key) -> value and put(key, value). Achieve O( 1) average time...

Coding & Algorithms

Sep 6, 2025