Ace the Rust Interview

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The curriculum, drills, tutor, and interviewer mode are for readers of Ace the Rust Interview. The code is printed in the Preface (Companion site access).

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intermediate · order 88

Minimum window substring

hash-minwin-01Related book chapters: 16 (optional — this page is complete on its own)minimum-window

Slug: hash-minwin-01 · Paired reading: Chapter 16

Prompt

fn min_window(s: &str, t: &str) -> String — smallest substring of s covering every character in t (with multiplicity). ASCII letters; return "" if impossible. Variable window + need/have counts.