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Python面试宝典-基础篇-2020.md	https://github.com/HughTang/Leetcode-Python/blob/main/Python%E9%9D%A2%E8%AF%95%E5%AE%9D%E5%85%B8-%E5%9F%BA%E7%A1%80%E7%AF%87-2020.md
Python面试宝典-基础篇-2020.md	https://github.com/HughTang/Leetcode-Python/blob/main/Python%E9%9D%A2%E8%AF%95%E5%AE%9D%E5%85%B8-%E5%9F%BA%E7%A1%80%E7%AF%87-2020.md
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刷题记录.md	https://github.com/HughTang/Leetcode-Python/blob/main/%E5%88%B7%E9%A2%98%E8%AE%B0%E5%BD%95.md
刷题记录.md	https://github.com/HughTang/Leetcode-Python/blob/main/%E5%88%B7%E9%A2%98%E8%AE%B0%E5%BD%95.md
README	https://github.com/HughTang/Leetcode-Python
	https://github.com/HughTang/Leetcode-Python#刷题心得
	https://github.com/HughTang/Leetcode-Python#1如何通过字典的value来访问key
	https://github.com/HughTang/Leetcode-Python#现有博客中介绍过很多实现方法但是大多数都要求value值必须唯一真实情况下的实用性太差这里记录一个简单实用的思路即构建一个新的字典进行键值的反转但由于无法保证value值的唯一性因此新字典中的每个键对应的值需要为一个列表关键代码如下
	https://github.com/HughTang/Leetcode-Python#典型题目为桶排序的347-前k个高频元素和451-根据字符出现频率排序
	https://github.com/HughTang/Leetcode-Python#2同时获取数组元素出现频率和子序列长度的方法
	https://github.com/HughTang/Leetcode-Python#用一个字典同时存储给定数组的数值及相应数值所在的下标和个数如下格式数值1下标1下标2下标m即数值下标列表的方法来存储这样既可以获取某数值的范围也可以通过len的方法获取特定数值在数组中出现的次数一举两得关键代码如下
	https://github.com/HughTang/Leetcode-Python#典型题目为697-数组的度
	https://github.com/HughTang/Leetcode-Python#3在存储临时判别元素时尽量用字典或集合不要用列表元组和字符串因为集合和字典的存取时间复杂度为o1查询效率更高此外在查询速度和内存占用方面列表与字典的区别如下
	https://github.com/HughTang/Leetcode-Python#4在列表中找寻和为target的子列表
	https://github.com/HughTang/Leetcode-Python#此类题目如果按照所求子列表中元素是否是连续的可以分为在列表中找寻元素组合-或-在列表中找寻子序列
	https://github.com/HughTang/Leetcode-Python#1如果是寻找连续子序列一般通过哈希表字典来实现可以根据所求结果将题目分为-求满足题意的子列表个数-或-求最大子序列长度如果是求子序列的个数一般哈希表初始化为01保证其提前涵盖了列表中的某个值正好等于target的情况如果是求连续子序列的最大长度一般哈希表初始化为0-1保证其提前涵盖了列表中的最长子序列是从第一个元素就开始的情况典型题目如下
	https://github.com/HughTang/Leetcode-Python#2如果是寻找非连续子序列即寻找的是列表的元素组合是否能够相加等于target一般通过dp或dfsbfs来实现可以根据所求结果将题目分为-求是否存在某种组合求满足题意的组合个数求组合元素数量最少的情况求所有的组合情况列表其中一般通过dp来实现一般通过dfsbfs来实现需要注意的是也可以通过dfs来实现但是可能会超时典型题目如下
	https://github.com/HughTang/Leetcode-Python#5判断字符串是否是纯数字
	https://github.com/HughTang/Leetcode-Python#6print调整数字的精度及带符号输出
	https://github.com/HughTang/Leetcode-Python#7进制转换
	https://github.com/HughTang/Leetcode-Python#8any与all的使用
	https://github.com/HughTang/Leetcode-Python#any-函数用于判断给定的可迭代参数-iterable-是否全部为-false则返回-false如果有一个为-true则返回-true元素除了是-0空false-外都算-true函数等价于
	https://github.com/HughTang/Leetcode-Python#all-函数用于判断给定的可迭代参数-iterable-中的所有元素是否都为-true如果是返回-true否则返回-false元素除了是-0空nonefalse-外都算-true函数等价于
	https://github.com/HughTang/Leetcode-Python#9判断两个字符串是否含有相同字符
	https://github.com/HughTang/Leetcode-Python#典型题目
	https://github.com/HughTang/Leetcode-Python#需要时常回顾的难题
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	https://github.com/HughTang/Leetcode-Python#two-pointers
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