Practice Robinhood Coding Question | Real Coding Interviews | Hack2hire

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Quick Summary

Model role inheritance as a directed acyclic graph where edges represent privilege transfer.
Process roles in a dependency-respecting order to propagate allowed and disallowed privileges.
Compute final privileges per role by merging inherited sets, applying exclusions, and sorting.

What This Tests

Graph modeling and traversal
Dependency resolution
Set operations and filtering
Topological ordering concepts

Common Patterns

Graph Traversal

Sorting

Hashing

Test Cases

Input

Output

Expected