Mobile Engineer signal: greedy proof + sorting in a on-device search context. This is a ProdMatch-owned mobile engineer drill, framed as a May 2026 Unacademy Mobile Search simulation, not a copied platform question.
Company context
Unacademy · Mobile Search
Freshness
May 2026
Product surface
on-device search
ProdMatch interview simulation based on product-team patterns; not a claim of a real company question.
Rebalance tokens across shards for on-device search. 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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