May 1, 2025 · 3 min read · Prerequisite Knowledge: JavaScript fundamentals. Object-Oriented JavaScript. Data Structures and Algorithms. A stack is an important construct in Data Structures and computer programming in general. The compiler uses it for syntactic analysis, a...
Join discussionMay 11, 2024 · 2 min read · A word is considered valid if: It contains a minimum of 3 characters. It contains only digits (0-9), and English letters (uppercase and lowercase). It includes at least one vowel. It includes at least one consonant. You are given a string word....
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May 11, 2024 · 2 min read · A valid parentheses string is either empty "", "(" + A + ")", or A + B, where A and B are valid parentheses strings, and + represents string concatenation. For example, "", "()", "(())()", and "(()(()))" are all valid parentheses strings. A valid p...
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Apr 21, 2024 · 2 min read · Given a string s containing only three types of characters: '(', ')' and '*', return true if s is valid. The following rules define a valid string: Any left parenthesis '(' must have a corresponding right parenthesis ')'. Any right parenthesis ')' ...
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Mar 16, 2023 · 3 min read · Problem Description Welcome to another fun coding challenge! Today, we'll be tackling the Valid Parentheses problem. Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input strin...
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Jan 26, 2023 · 5 min read · Chào mọi người, trong bài viết đầu tiên sau Tết 2023, mình muốn bắt đầu bằng một cái gì nó nhẹ nhàng nên quyết định chọn một bài toán tin đã làm khó mình trong khoảng thời gian lúc trước khi đi phỏng vấn để mổ xẻ về thuật toán và cách mình suy nghĩ. ...
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