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文章目录 啥是JavaScriptJavaScript与HTML的结合方式js文件在HTML中的位置注释方式变量命名规范:定义的关键字 To be a struggling Rick for everything~ 啥是JavaScript 题外话,JavaScript并非java的简版,这在核心技 阅读全文
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原题链接https://leetcode.com/problems/redundant-connection/ 题目描述 In this problem, a tree is an undirected graph that is connected and has no cycles. The g 阅读全文
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原题链接https://leetcode.com/problems/friend-circles/ 题目描述 There are N students in a class. Some of them are friends, while some are not. Their friendship 阅读全文
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原题链接https://leetcode.com/problems/evaluate-division/ 题目描述 Equations are given in the format A / B = k, where A and B are variables represented as stri 阅读全文
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原题链接https://leetcode.com/problems/number-of-islands/ 题目描述 Given a 2d grid map of '1’s (land) and '0’s (water), count the number of islands. An island 阅读全文
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原题链接https://leetcode.com/problems/surrounded-regions/ 题目描述 Given a 2D board containing ‘X’ and ‘O’ (the letter O), capture all regions surrounded by ‘ 阅读全文