Python3解leetcode Binary Tree PathsAdd DigitsMove Zeroes
问题描述:
Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements.
Example:
Input:[0,1,0,3,12]
Output:[1,3,12,0,0]
Note:
- You must do this in-place without making a copy of the array.
- Minimize the total number of operations.
思路:
主要是list的sort()函数的应用
代码:
def moveZeroes(self, nums: List[int]) -> None:
"""
Do not return anything, modify nums in-place instead.
"""
nums.sort(key = lambda x: x ==0)
key是sort()函数中的一个参数,该参数指定排序的元素。当前代码中排序元素就是nums中所有0元素,到最后所有0元素一组(新),除去0元素的其他元素一组(老),最终默认按照老-新的顺序将nums重新排序
Python3解leetcode Binary Tree PathsAdd DigitsMove Zeroes的更多相关文章
- Python3解leetcode Binary Tree PathsAdd Digits
问题描述: Given a non-negative integer num, repeatedly add all its digits until the result has only one ...
- Python3解leetcode Binary Tree Paths
问题描述: Given a binary tree, return all root-to-leaf paths. Note: A leaf is a node with no children. E ...
- Python3解leetcode Same Tree
问题描述: Given two binary trees, write a function to check if they are the same or not. Two binary tree ...
- Python3解leetcode Symmetric Tree
问题描述: Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). ...
- Python3解leetcode N-ary Tree Level Order Traversal
问题描述: Given an n-ary tree, return the level order traversal of its nodes' values. (ie, from left to ...
- LeetCode:Binary Tree Level Order Traversal I II
LeetCode:Binary Tree Level Order Traversal Given a binary tree, return the level order traversal of ...
- LeetCode: Binary Tree Traversal
LeetCode: Binary Tree Traversal 题目:树的先序和后序. 后序地址:https://oj.leetcode.com/problems/binary-tree-postor ...
- Python3解leetcode Average of Levels in Binary Tree
问题描述: Given a non-empty binary tree, return the average value of the nodes on each level in the form ...
- Python3解leetcode Lowest Common Ancestor of a Binary Search Tree
问题描述: Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in ...
随机推荐
- Vue通信、传值的多种方式,详解(都是干货)
Vue通信.传值的多种方式,详解(都是干货) 可参考博客: https://blog.csdn.net/qq_35430000/article/details/79291287
- mysql_DML_select_升序降序去重
select *from wsb limit 5;显示前5行 select *from students LIMIT (m,n) (其中m是指记录开始的index,从0开始,表示第一条记录n是指 ...
- vue搭建项目之设置代理
前面将项目页面.axios.组件等都准备好了,现在就差设置代理了: 首先在config下新建两个文件,分别叫做dev.uri.js和prod.uri.js,代码为: module.exports = ...
- State Hook
1 useState函数的第一个参数,是state变量的初始值. 2 每次渲染时,多个State Hook的顺序.数量都是一样的.(不能多.不能少) 3 state变量是只读的 4 state变量发生 ...
- SmokeTest测试流程
没办法了,本来是表格,但是粘贴不过来 测试目的: 用于检测该版本在基本的应用场景下,基本的功能是否满足. 测试前提: 发货版本 示例:ATV9冒烟测试测试项解读 表格获取:Google ATV hel ...
- Git015--标签管理
Git--标签管理 本文来自于:https://www.liaoxuefeng.com/wiki/0013739516305929606dd18361248578c67b8067c8c017b000/ ...
- HTML5-新增type属性
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8&quo ...
- 在Linux上安装MySQL
一.获取mysql YUM源 打开网址:https://dev.mysql.com/downloads/repo/yum/,选择对应linux版本 点击“No thanks, just star ...
- 【Python—参数】*arg与**kwargs参数的用法
在python中,这两个是python中的可变参数,*arg表示任意多个无名参数,类型为tuple;**kwargs表示关键字参数,为dict. # *允许你传入0个或任意个参数,这些可变参数在函数调 ...
- 【五一qbxt】day6 OI中的stl
from:why 很多很多part…… 1.pair: 相当于把两个变量放在一起: #include<utility> using namespace std; pair<TypeN ...