Security Engineer signal: greedy proof + sorting in a authorization policy engine context. This is a ProdMatch-owned security engineer drill, framed as a April 2026 PayPal Identity simulation, not a copied platform question.
Company context
PayPal · Identity
Freshness
April 2026
Product surface
authorization policy engine
ProdMatch interview simulation based on product-team patterns; not a claim of a real company question.
Rebalance rules across shards for authorization policy engine. Each move has a cost equal to distance between shards. Compute minimum cost to make shard loads differ by at most one.
Input
Output
Constraints
Concepts
loads [0,3,0] -> move one unit left and one right, cost=2
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