LeetCode 736: Parse Lisp Expression
Evaluate a Lisp-like expression with integers, variables, let bindings, addition, multiplication, and lexical scope.
Tag
Parsing
11 notes
LeetCode 726: Number of Atoms
Parse a chemical formula with nested parentheses, atom names, and multipliers using recursive descent.
LeetCode 640: Solve the Equation
A string parsing solution for reducing a linear equation into coefficient and constant terms.
LeetCode 609: Find Duplicate File in System
A hash map guide for grouping file paths by identical file content and returning only duplicate groups.
LeetCode 227: Basic Calculator II
A detailed explanation of evaluating arithmetic expressions with stack-based parsing and operator precedence.
LeetCode 592: Fraction Addition and Subtraction
A clear parsing and math solution for evaluating fraction addition and subtraction expressions.
LeetCode 591: Tag Validator
A clear stack-based parser for validating nested XML-like tags with CDATA sections.
LeetCode 536: Construct Binary Tree from String
A clear explanation of parsing a parenthesized string recursively to construct a binary tree.
LeetCode 439: Ternary Expression Parser
Evaluate a nested ternary expression using a right-to-left stack parser.
LeetCode 65: Valid Number
A clear guide to validating whether a string is a valid number using grammar rules and one left-to-right scan.
LeetCode 8: String to Integer (atoi)
A detailed explanation of parsing a string into a 32-bit signed integer with whitespace, sign, digit reading, and clamping rules.