Como se preparar para entrevistas na Flex

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Describe your most impactful project

+5

Design a Social Media Feed Generation System

Design a social media feed system that generates and populates personalized feeds for users on platforms like Twitter, Instagram, or Facebook.

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Describe your current role

Leetcode 227. Basic Calculator II

Evaluate a valid arithmetic expression string containing non-negative integers and the operators +, -, *, / (with spaces allowed), where division truncates toward zero. The core challenge is to parse and compute the result while respecting operator precedence (multiplication/division before addition/subtraction) without using built-in eval.

Leetcode 224. Basic Calculator

Evaluate a string expression containing integers, '+', '-', parentheses and spaces (with unary '-' allowed) and return its numeric result without using eval. The core challenge is correctly handling nested parentheses and unary minus—typically solved with a stack or recursive parsing to maintain sign/state.