Level 4Exercise #81

Pairs hitting a target

Return pairs of distinct input positions whose values sum to target.

What you’ll practice

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

Relevant Python reference: filter(), itertools.combinations.

Sample Test Cases

Example #1

Input:target_pairs([1,2,3,4], target=5)

Output:[(1,4),(2,3)]

Reference Solution

Reveal Reference Solution

def target_pairs(values: list[int], target: int):
    from itertools import combinations
    return [pair for pair in combinations(values, 2) if sum(pair) == target]

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Pairs hitting a target

What you’ll practice

Sample Test Cases

Further Reading

Reference Solution