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DevOps Coding Problem
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DevOps Coding Problem

HardPython

Problem

Solve a coding problem that involves data structures or algorithms relevant to DevOps tasks.

Implement has_dependency_cycle(dependencies) to determine whether a directed dependency graph contains a cycle. Each key is a service or deployment component, and its value lists components that must be deployed before it. Return True if any cycle exists, otherwise return False.

The input is a dictionary of strings to lists of strings. Components mentioned only as dependencies are valid vertices. Use the function signature def has_dependency_cycle(dependencies):.

Constraints

  • 0 <= number of declared components <= 1000
  • Each component name is a non-empty string
  • Each dependency list contains strings
  • A dependency may appear only as a value and need not be a dictionary key
  • The graph may contain disconnected components

Function Signature

def has_dependency_cycle(dependencies):
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