227. Basic Calculator II | Leetcode Unlocked - Python

Описание: In this video, we tackle LeetCode 227: Basic Calculator II, a classic string evaluation problem designed to test your parsing skills and understanding of operator precedence. We avoid using the built-in eval function and instead build a robust solution from scratch. First, we explore the intuitive Stack approach to handle multiplication and division priority, then we refine it into an O(1) space optimized solution for maximum efficiency. This tutorial walks through building multi-digit numbers, handling whitespace, and managing state logic in Python, Java, C++, and JavaScript. Perfect for developers preparing for technical interviews who want to master string manipulation and algorithm optimization.

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Solution Link:
https://leetcode.com/problems/basic-c...

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