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Labuladong Algo Notes

Introduction

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Exercise: Bracket Problems on LeetCode

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20. Valid Parentheses
921. Minimum Add to Make Parentheses Valid
1541. Minimum Insertions to Balance a Parentheses String

20. 有效的括号 https://leetcode.cn/problems/valid-parentheses

20. Valid Parentheses https://leetcode.com/problems/valid-parentheses

Prerequisite Knowledge

Before reading this article, you need to learn:

Principles of Queues/Stacks

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Last update: 3/31/2025, 12:50:25 PM

Exercise: Stack Problems on LeetCode

Exercise: Queue Problems on LeetCode

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