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Command + W 关闭窗口 Command + Q 退出程序 Command + M 最小化窗口 Command + Up/Down/Left/Right 光标移到当前文档的头部／尾部，当前行的头部／尾部 Fn + Delete 删除光标后的字符 Option + Delete 删除光标前整行 阅读全文
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源代码地址：https://github.com/hopebo/hopelee 语言：C++ 301. Remove Invalid Parentheses Remove the minimum number of invalid parentheses in order to make the i 阅读全文
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源代码地址：https://github.com/hopebo/hopelee 语言：C++ 24.Swap Nodes in Pairs Given a linked list, swap every two adjacent nodes and return its head. For exam 阅读全文