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Grokking the Coding Interview Patterns

Parsing a Boolean Expression

Explore how to parse boolean expressions composed of TRUE, FALSE, NOT, AND, and OR operations using stacks. Understand the logic behind these expressions and develop a solution that evaluates their correctness, enhancing your problem-solving skills for coding interviews.

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Statement

You are given a string, expression, that represents a boolean expression. The expression can take one of the following forms:

  • 't': Represents the boolean value TRUE.

  • 'f': Represents the boolean value FALSE.

  • '!(expr)': Represents a NOT operation applied to a subexpression expr. It returns the logical negation of expr.

  • '&(expr1, expr2, ..., exprN)': Represents an AND ...