All challenges
Code AnalysisHard 60s

Mutable Balance Ledger Correction

Pseudo-code: UPDATE ledger_entries SET amount = 250 WHERE txn_id = 'T99'; In a double-entry ledger that must remain immutable and balanced, what is wrong?

Think you can answer under pressure?

Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.

Play this in a 3-minute battle