leetcode:Reverse Integer 及Palindrome Number Reverse IntegerReverse digits of an integer.Example1: x = 123, return 321Example2: x = -123, return -321click to show spoilers.Have you thought about this?Here are some good questions to ask before coding. Bonus points for you if you have ...
Given an array nums, we call (i, j) an important reverse pair if i < j and nums[i] > 2*nums[j]. You need to return the number of important reverse pairs in the given array. Example1: Input: [1,3,2,3,1] Output: 2 Example2: Input: [2,4,3,5,1] Output: 3 Note: The ...
1. Reverse Nodes in k-Group Given a linked list, reverse the nodes of a linked listkat a time and return its modified list. kis a positive integer and is less than or equal to the length of the linked list. If the number of nodes is not a multiple ofkthen left-out nodes in the...
151. Reverse Words in a String Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". 题目大意: 输入一个字符串,将单词序列反转。 思路1: 采用一个vector,来存放中间结果 将vector的结果倒序放入原字符串中。 思路2: 在...
the number at each bit in decimal base if the reversed integer overflows For [1]: We can turn all negative numbers to their opposite, or equivalently take their absolute values. Recover the sign when the result is returned. However, here exists a corner case:x == -2147483648since the pos...
The solution of my own takes 49ms, the most voted solution in Java takes 41ms. Before my AC, I got two WA because of I didn't take the range of Integer into consideration. So, I add the 'if' to judge whether the reversed number is beyond the range of 'Integer'. ...
My Solutions to Leetcode problems. All solutions support C++ language, some support Java and Python. Multiple solutions will be given by most problems. Enjoy:) 我的Leetcode解答。所有的问题都支持C++语言,一部分问题支持Java语言。近乎所有问题都会提供多个算
package leetcode import "strings" func reverseWords151(s string) string { ss := strings.Fields(s) reverse151(&ss, 0, len(ss)-1) return strings.Join(ss, " ") } func reverse151(m *[]string, i int, j int) { for i <= j { (*m)[i], (*m)[j] = (*m)[j], (*m)[i]...
输入: "leetcode" 输出: "leotcede" 说明:元音字母不包含字母"y"。 二、题解 英语中的元音字母有 a, e, i, o, u 五个,考虑大小写的话,加上 A, E, I, O, U,遇到这些元音字母,需要反转元音字母,但其它辅音字母的位置不变。 这道题其实和 #344 题很像,用双指针法。遍历数组,一个指针从前向...
【leetcode刷题】24. Swap Nodes in Pairs 原题链接:https://leetcode.com/problems/swap-nodes-in-pairs/ 解题思路:在head前添加一个node,第一步,将pre指向该对pair的第二个,第二步,将cur指向下一对pair的第一个,第三步,将该对pair的第二个指向第一个。 代码:... ...