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LeetCode 7. Reverse Integer

Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return -321 Have you thought about this? Here are some good questions to ask before coding. Bonus points for you if you have already thought through this! If the integer'…

js sort() reverse()

数组中存在的两个方法:sort()和reverse() 直接用sort(),如下: ,,,,,,,,,,,]; console.log(array.sort());ps:[0, 1, 2, 2, 29, 3, 3, 34, 7, 7, 782, 8] 这个好像真的效果,sort(): arr.sort([compareFunction]) 参数 compareFunction 可选.用来指定按某种顺序进行排列的函数.如果省略,元素按照转换为的字符串的诸个字符的Unicode位点进行排序. 原来是…

[LeetCode] Reverse Vowels of a String 翻转字符串中的元音字母

Write a function that takes a string as input and reverse only the vowels of a string. Example 1:Given s = "hello", return "holle". Example 2:Given s = "leetcode", return "leotcede". 这道题让我们翻转字符串中的元音字母,元音字母有五个a,e,i,o…

[LeetCode] Reverse String 翻转字符串

Write a function that takes a string as input and returns the string reversed. Example: Given s = "hello", return "olleh". 这道题没什么难度,直接从两头往中间走,同时交换两边的字符即可,参见代码如下: 解法一: class Solution { public: string reverseString(string s) { , right =…

[LeetCode] Reverse Linked List 倒置链表

Reverse a singly linked list. click to show more hints. Hint: A linked list can be reversed either iteratively or recursively. Could you implement both? 之前做到Reverse Linked List II 倒置链表之二的时候我还纳闷怎么只有二没有一呢,原来真是忘了啊,现在才加上,这道题跟之前那道比起来简单不少,题目为了增加些许难度,让我们分别用…

[LeetCode] Reverse Bits 翻转位

Reverse bits of a given 32 bits unsigned integer. For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as00111001011110000010100101000000). Follow up:If this function i…

[LeetCode] Reverse Words in a String II 翻转字符串中的单词之二

Given an input string, reverse the string word by word. A word is defined as a sequence of non-space characters.The input string does not contain leading or trailing spaces and the words are always separated by a single space.For example,Given s = "t…