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摘要: 1. Question: 897. Increasing Order Search Tree url: https://leetcode.com/problems/increasing-order-search-tree/description/ Given a tree, rearrange th 阅读全文
posted @ 2018-11-17 22:47 ordi 阅读(158) 评论(0) 推荐(0)
摘要: 1. Quesiton 700. Search in a Binary Search Tree url: https://leetcode.com/problems/search-in-a-binary-search-tree/description/ Given the root node of 阅读全文
posted @ 2018-11-17 22:40 ordi 阅读(127) 评论(0) 推荐(0)
摘要: 1. Question: 671. Second Minimum Node In a Binary Tree url: https://leetcode.com/problems/second-minimum-node-in-a-binary-tree/description/ Given a no 阅读全文
posted @ 2018-11-17 22:18 ordi 阅读(147) 评论(0) 推荐(0)
摘要: 1. Question: 653. Two Sum IV - Input is a BST url: https://leetcode.com/problems/two-sum-iv-input-is-a-bst/description/ Given a Binary Search Tree and 阅读全文
posted @ 2018-11-17 21:27 ordi 阅读(120) 评论(0) 推荐(0)
摘要: 1. Question: 606. Construct String from Binary Tree url : https://leetcode.com/problems/construct-string-from-binary-tree/description/ You need to con 阅读全文
posted @ 2018-11-17 18:35 ordi 阅读(110) 评论(0) 推荐(0)
摘要: 1. Quesiton 590. N-ary Tree Postorder Traversal URL: https://leetcode.com/problems/n-ary-tree-postorder-traversal/description/ Given an n-ary tree, re 阅读全文
posted @ 2018-11-17 17:54 ordi 阅读(119) 评论(0) 推荐(0)
摘要: 1. Question 589. N-ary Tree Preorder Traversal Given an n-ary tree, return the preorder traversal of its nodes' values. For example, given a 3-ary tre 阅读全文
posted @ 2018-11-17 17:50 ordi 阅读(98) 评论(0) 推荐(0)
摘要: 1. Quetions: 617. Merge Two Binary Trees url: https://leetcode.com/problems/merge-two-binary-trees/description/ Given two binary trees and imagine tha 阅读全文
posted @ 2018-11-17 17:41 ordi 阅读(110) 评论(0) 推荐(0)
摘要: SHELL 变量 1. SHELL变量综述 SHELL 是动态语言类型和弱类型语言,变量在使用之前不用显示定义。SHELL的变量不分数据类型,统一按字符串存储。但是根据上下文环境,允许执行不同的操作。 2. SHELL变量定义 declare attribute variable 可用于显示定义变量 阅读全文
posted @ 2018-08-08 21:51 ordi 阅读(202) 评论(0) 推荐(0)
摘要: egrep 正则表达式 一.功能 用正则表达式在文件或输入中搜索匹配的字符串,并打印出匹配的行。egrep匹配之前,会删除每行结尾的换行符。 二.语法 grep [OPTION]... PATTERN [FILE]... OPTION 是选项,如 -i 匹配时忽略大小写 PATTERN 是正则表达式 阅读全文
posted @ 2018-07-31 14:37 ordi 阅读(2228) 评论(0) 推荐(0)
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