#stack

Remove parentheses from a plus/minus expression
CodingHardGoogleMeta
▲ 01 solution
Validate and parse a bracketed list string
CodingEasyFigma
▲ 01 solution
Longest valid bracket substring with nesting ranks
CodingHardUber
▲ 01 solution
Evaluate nested add and sub expressions
CodingMediumGoogleUber
▲ 01 solution
Design layer document with undo, redo and batches
CodingMediumFigma
▲ 01 solution
Key-value store with nested transaction rollback
CodingMediumxAISnowflakeTesla
▲ 01 solution