Minimizing Inversion Pairs in Array Partitioning

Problem Description Given a permutation of length n and an integer k, partition the array in to k contiguous segments such that the sum of inversion counts within each segment is minimized. Constraints: n ≤ 25000, k ≤ 25 Solution Approach This problem can be solved using dynamic programming with decision monotonicity and divide-and-conquer opti ...

Posted on Thu, 06 Aug 2026 16:57:59 +0000 by IWS