Give a binary tree, find its minimum depth. The minimum depth is the number of nodes along the shortest path from root node down to the nearest leaf node. Solution 1. Recursion 1publicclassMinDepthBt {2publicintgetMinDepth(TreeNode root) {3returnhelper(root, 0);4}5privateinthelper(TreeN...
可以使用 -maxdepth 限制 find 命令递归的层数。 find / -maxdepth 3 搜索时向下递归的层数最大为 3 10. 逻辑组合 在之前的例子中有出现多个搜索条件的组合以及对某个搜索条件的反转。 实际上 find 命令支持 “and” 和“or” 两种逻辑运算,对应的命令选项分别是 -a 和 -o。通过这两个选项可以对搜索条件...
-links<number of connections>: 查找符合指定的硬连接数目的文件或目录。 -iname<template style>: 指定字符串作为寻找符号连接的范本样式。 -ls: 假设find指令的回传值为Ture,就将文件或目录名称列出到标准输出。 -maxdepth<directory level>: 设置最大目录层级。 -mindepth<directory level>: 设置最小目录层级。
Set of Patterns to solve many algorithmic questions of similar type on LeetCode leetcode trie backtracking binary-search-tree arrays dynamic-programming breadth-first-search greedy-algorithms depth-first-search union-find divide-and-conquer two-pointers bitwise-operation algorithmic-questions Updated May...
Given a binary tree, find its minimum depth.The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node. /*** Definition for binary tree * public class TreeNode { * int val;
这道题终于在第五次做的时候,明白了Binary Tree的Height和Depth的区别,Height是从下往上数,Leaf的height为0, Root的height最大;而Depth是从上往下数,root的depth为0, Leaf的depth最高。所以这道题说是Find leaves, 其实是把所有node按Height分,比如第一层所有的Leaf nodes就是height = 0的node; 第二层的Lea...
-a, --absolute-path Show absolute instead of relative paths -l, --list-details Use a long listing format with file metadata -L, --follow Follow symbolic links -p, --full-path Search full abs. path (default: filename only) -d, --max-depth <depth> Set maximum search depth (default...
find / -maxdepth 5 -name "ifcfg*" 往下找5层 find / -name "ifcfg*" -o -size +3M -o表示或者(or); 不写-o则默认是-a,表示与(and) 4.按照时间找 find /etc -mtime +3修改时间超过3天 5.按照文件属主属组找 find /home -user egg -group egg find /home -nouser 查找没有用户的文件,...
When the JSON path only contains a literal string if$is omitted (for example,find("$.'country_name'")for finding all documents that have acountry namefield. After the scope, a path consists of one or more path legs. A path leg leads from one level of the JSON tree down to the next...
path (default: filename only) -d, --max-depth <depth> Set maximum search depth (default: none) -E, --exclude <pattern> Exclude entries that match the given glob pattern -t, --type <filetype> Filter by type: file (f), directory (d/dir), symlink (l), executable (x), empty (e...