Problem: Find K Pairs with Smallest Sums

Medium

30 min

Explore how to find the k pairs of numbers with the smallest sums from two sorted arrays. This lesson helps you understand and implement k-way merge strategies to solve this problem efficiently, preparing you for coding interviews that involve merging and sorting challenges.

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