Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in Go

Solution: Sort Items by Groups Respecting Dependencies

Explore how to arrange items with dependencies while ensuring items of the same group appear consecutively. Understand hierarchical topological sorting to solve dual-level ordering problems and return valid sequences or detect impossibility.

We'll cover the following...

Statement

You are given nn items indexed from 00 to n−1n − 1. Each item belongs to 00 or one of m groups, described by the array group, where:

  • group[i] ...