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Greedymedium45 minSecurity Engineer

Secrets Greedy Load Rebalancer

Security Engineer signal: greedy proof + sorting in a secret exposure scanner context. This is a ProdMatch-owned security engineer drill, framed as a May 2026 Dream11 AppSec simulation, not a copied platform question.

Company context

Dream11 · AppSec

Freshness

May 2026

Product surface

secret exposure scanner

ProdMatch interview simulation based on product-team patterns; not a claim of a real company question.

Question

Rebalance findings across shards for secret exposure scanner. Each move has a cost equal to distance between shards. Compute minimum cost to make shard loads differ by at most one.

Input

  • Array of shard loads.

Output

  • Minimum movement cost.

Constraints

  • 1 <= shards <= 200000
  • Total load <= 1e12

Concepts

  • attack graphs
  • policy tries
  • anomaly detection
  • greedy proof
  • sorting
  • load balancing

loads [0,3,0] -> move one unit left and one right, cost=2

Approach

Try framing your own approach first. The 30 seconds you think before peeking is where learning happens.

Clean Solution

Reveal the approach first.

How well did you understand?

Your rating tunes when this problem shows up again.

Common Mistakes

  • A greedy idea without a proof may fail hidden cases.
  • Do not mutate sorted keys in a way that breaks ordering.

Next Similar Problems

Attack Greedy Load RebalancermediumPolicy Greedy Load RebalancermediumAnomaly Greedy Load Rebalancerhard