K-server with a hostile adversary
k movable servers, requests scripted to punish your last decision. Beat the offline optimum within a competitive ratio. Show your work.
Contract
twoSum(input: any) → any
Return the indices, not the values. Order matters.
Visible tests
- in: [2, 7, 11, 15], target: 9→ [0, 1]
- in: [3, 2, 4], target: 6→ [1, 2]
- in: [3, 3], target: 6→ [0, 1]
+ 7 hidden tests fire on submit
Step in
Current Codigami · 1:42 by @reverie
Your best · 1:58
Break it for +12 Elo. Fall short for −3.
Same problem. Two ways to play. Both rank on the same Elo.
What this trial is
k movable servers, requests scripted to punish your last decision. Beat the offline optimum within a competitive ratio. Show your work.
Long-form trial — par ~25 minutes. Designed for a full session; the tape itself is the artifact, and peers will scrub through it.
Elo upside if you nail it
Solid run
+14 to +28
Top run
+38
Medal line
gold
Long-form territory. A top-15% finish unlocks judging and signals you're climbing seriously.
Solo Elo · MARK ÷ 100 vs field 2100, K-32. Codesport duel wins multiply by ×1.25, losses by ×0.40.
Trial leaderboard · ALGO-009
Best runs on this trial.
Composite = MARK · 60% + ROOM · 40%. Top 15% earn Bronze, top 5% Silver, top 1% Gold.
Top 15% on this trial earns Bronze; top 5% Silver; top 1% Gold. Trial trophies are per-trial visual rewards; the Elo ladder (Demi Coder → Master Coder) is the credential.
@Codeseum on YouTube
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