Enter your book access code

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).

Don’t have the book yet? The landing page stays open — purchase unlocks this gym.

advanced · order 169

Subsets via bit masks

bit-subset-01Related book chapters: 23 (optional — this page is complete on its own)bitmask

Slug: bit-subset-01 · Paired reading: Chapter 23

Prompt

fn subsets_mask(nums: &[i32]) -> Vec<Vec<i32>> — power set via masks 0..(1<<n) (n ≤ 20). Same contents as backtracking subsets (order free).