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Solve bank, password, expression algorithm tasks

InstacartSoftware Engineer · Onsite
MediumSoftware EngineerOnsiteCoding & Algorithms

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This interview question evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer for Solve bank, password, expression algorithm tasks states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

Question

Implement a banking system that supports four specified operations within 90 minutes. Implement a password-related algorithm (e.g., validating or generating a strong password). Parse and evaluate an arithmetic expression string with operators and parentheses.