PYTHON PROBLEM 063 · Intermediate

Invert a dictionary

Reverse a name-to-code mapping so codes become searchable keys.

comprehension · mappingcomprehensionmapping

PROBLEM OVERVIEW

What this Python exercise asks you to practise

This scenario tests invert a dictionary. It belongs to the Sets and Dictionaries roadmap and uses the comprehension · mapping pattern.

Uniqueness, membership tests, key-value lookup, frequency counting, and grouping.

COMPLETE WORKSPACE

Learn the plan, trace the logic and run the solution

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SKILL TO CARRY FORWARD

Pattern relevance

This exercise strengthens comprehension · mapping. Be ready to explain the input, the rule, the boundary cases, and why the chosen approach is appropriate.