InterviewDigestTechnical2026-08-16
Evaluate a given postfix expression using a stack data structure.
AI-Expanded — inferred from the question title, not from the original candidate report
Given a string representing a mathematical expression in postfix notation (Reverse Polish Notation), implement a function that evaluates the expression and returns the final integer result. You should utilize a stack data structure to store operands and process each operator by popping the necessary number of elements from the stack, performing the calculation, and pushing the result back onto the stack.
Context & Summary
45-minute interview conducted via Zoom. Two coding questions: evaluating a postfix expression using a stack and solving a word search problem using backtracking.
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