Search
⌘K
Get Premium
Leetcode 3224. Minimum Array Changes to Make Differences Equal
Given an even-length array and allowed values 0..k, find the minimum number of element replacements so that every mirrored pair satisfies |a[i] - a[n-1-i]| = X for the same X. The core challenge is to aggregate per-pair costs (0/1/2 changes) across all candidate X efficiently and pick the X that minimizes the total changes.
Question Timeline
See when this question was last asked and where, including any notes left by other candidates.
All Regions
Comments
Hello Interview Premium
Your account is free and you can post anonymously if you choose.