Level 4Exercise #80

Choose a pair

Return every unordered pair of teammates exactly once.

What you’ll practice

This Level 4 exercise focuses on combinations in the Itertools curriculum. Solve the challenge prompt above using clear, idiomatic Python and the relevant language or standard-library tools.

Relevant Python reference: itertools.combinations.

Sample Test Cases

Example #1

Input:teammate_pairs(['A','B','C'])

Output:[('A','B'),('A','C'),('B','C')]

Reference Solution

Reveal Reference Solution

def teammate_pairs(names: list[str]):
    from itertools import combinations
    return list(combinations(names, 2))

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Choose a pair

What you’ll practice

Sample Test Cases

Further Reading

Reference Solution