# Use defaultdict(list) to group these pairs by the first element: ('a', 1), ('b', 2), ('a', 3), ('b',

Canonical URL: <https://datadriven.io/problems/use-defaultdictlist-to-group-these-pairs-by-the-first-elem-0f65d857>

Domain: Python · Difficulty: medium

## Problem

Use defaultdict(list) to group these pairs by the first element: ('a', 1), ('b', 2), ('a', 3), ('b', 4), ('c', 5). Print the grouped result as a regular dict with sorted keys.

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