CodingHardcod-g040

Subject Bitmask dpLevel Senior–Staff~30 minCommon in Distributed systems · Algorithms & data structures interviewsIndustries Software development

Question

Given an integer array nums and an integer k, determine whether it is possible to partition nums into exactly k non-empty subsets whose sums are all equal. Return true or false. Here 1 <= k <= len(nums) <= 16, and each element is a positive integer.

Implement

can_partition_k_subsets(nums: list[int], k: int) → bool

Examples

in[[4,3,2,3,5,2,1],4]outtrue

What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

Learn the concepts

Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.

Run or narrate your approach, then ask the coach.