Problem 60927. Pairs with Given Sum

Created by Asif Newaz

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Given an array of integers and a target sum, return all unique pairs whose sum is equal to the target. The output should be a matrix with 2 columns representing each pair.
Assume pairs are unordered, i.e., (2, 3) and (3, 2) are considered the same pair.  
try to maintain the sequence as the numbers appear in the input array.

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Last Solution submitted on Dec 31, 2025

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Dyuman Joshi 6 hours and 1 minute ago

This questions lacks good test cases.

Inline to that - many solutions submitted use nchoosek(), which would be inefficient (both time and memory wise) for arrays with a good number elements (say even n>500, as 500C2 = 124750).

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Problem 60927. Pairs with Given Sum

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Problem 60927. Pairs with Given Sum

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Last 200 Solutions

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Problem Recent Solvers10

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