ProdMatch
CompaniesCitiesRolesSign in

Companies

  • Google
  • Microsoft
  • Meta
  • Amazon
  • Apple
  • Atlassian
  • Nvidia
  • Oracle
  • See all 51 →

Cities

  • Bengaluru jobs
  • Hyderabad jobs
  • Pune jobs
  • Gurugram jobs
  • Noida jobs
  • Delhi NCR jobs
  • Mumbai jobs
  • Chennai jobs
  • Remote-India jobs

Roles

  • QA / SDET Engineers
  • Backend Engineers
  • Frontend Engineers
  • Full-stack Engineers
  • Data Analysts
  • Data Engineers
  • ML / AI Engineers
  • DevOps / SRE Engineers
  • All roles →

ProdMatch

  • About
  • Career guides
  • Compare
  • Salaries
  • Skills
  • DSA practice
  • Privacy
  • Terms
  • Sign in

© 2026 ProdMatch.ai · Built for India · DPDP Act 2023 compliant · Job data sourced from official company career pages.

Back to DSA
Bit Manipulationmedium45 minFull Stack Developer

Audit Policy State Compression

Full Stack Developer signal: bitmask DP + state compression in a audit trail explorer context. This is a ProdMatch-owned full stack engineer drill, framed as a May 2026 Udaan Trust Platform simulation, not a copied platform question.

Company context

Udaan · Trust Platform

Freshness

May 2026

Product surface

audit trail explorer

ProdMatch interview simulation based on product-team patterns; not a claim of a real company question.

Question

For audit trail explorer, each logs requires a subset of capabilities. Choose the smallest team of services covering all required capabilities; tie-break by lowest total risk.

Input

  • m capabilities and services with capability masks plus risk.

Output

  • Minimum service count and risk, or impossible.

Constraints

  • 1 <= m <= 22
  • 1 <= services.length <= 2000
  • Capability sets may overlap heavily.

Concepts

  • workflow graphs
  • API pagination
  • cache invalidation
  • bitmask DP
  • state compression
  • subset enumeration

required={A,B,C}, services=[AB risk 4, C risk 1] -> count=2, risk=5

Approach

Try framing your own approach first. The 30 seconds you think before peeking is where learning happens.

Clean Solution

Reveal the approach first.

How well did you understand?

Your rating tunes when this problem shows up again.

Common Mistakes

  • Do not shift beyond the integer width in fixed-width languages.
  • Keep feature-to-bit mapping stable.

Next Similar Problems

Onboarding Policy State CompressionhardBilling Policy State CompressionhardCRM Policy State Compressionmedium