Problem: Find K Pairs with Smallest Sums

Medium

30 min

Explore how to identify the k pairs with the smallest sums from two sorted arrays by applying k-way merge strategies. This lesson helps you understand the approach to efficiently solve this common coding interview problem using sorting and merging techniques.

Statement

You are given two integer arrays, list1 and list2, sorted in non-decreasing order, and an integer, k.

A pair $(u, \space v)$ is defined as one element $u$ chosen from list1 and one element $v$ chosen from list2.

Your task is to return the k pairs $(u1, \space v1), (u2, \space v2), ..., (uk, \space vk)$ whose sums $u1 + v1, u2 + v2, ..., uk + vk$ are the smallest among all possible such pairs.

Problem: Find K Pairs with Smallest Sums

Medium

30 min

Statement

You are given two integer arrays, list1 and list2, sorted in non-decreasing order, and an integer, k.

A pair $(u, \space v)$ is defined as one element $u$ chosen from list1 and one element $v$ chosen from list2.

Your task is to return the k pairs $(u1, \space v1), (u2, \space v2), ..., (uk, \space vk)$ whose sums $u1 + v1, u2 + v2, ..., uk + vk$ are the smallest among all possible such pairs.

Problem: Find K Pairs with Smallest Sums

Statement

Examples

Understand the problem

Figure it out!

Try it yourself

Problem: Find K Pairs with Smallest Sums

Statement

Examples

Understand the problem

Figure it out!

Try it yourself