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 ...
public int reverse(int x) { int ret=0; while(x!=0) { int t=x%10; ret=ret*10+t; x=x/10; } return ret; } } publicclassSolution {publicbooleanisPalindrome(intx) {if(x<0)returnfalse;if(x==0)returntrue;intret=0;intxold=x;while(x!=0) {inttemp= x%10;//zui hou yi wei...
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 ...
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...
prev=Noneforiinrange(k):ifnext_head:next_head=next_head.next_next=current.nextcurrent.next=prev prev=current current=_next tail.next=next_headorcurrentreturnret 再来一个直观的: 先看Leetcode 206的reverse linkedlist的问题: classSolution:defreverseList(self,head):ifnotheadornothead.next:returnhea...
The description is really short and easy. 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...
Original file line numberDiff line numberDiff line change @@ -128,6 +128,7 @@ My accepted leetcode solutions to some of the common interview problems. ### [Divide and Conquer](problems/src/divide_and_conquer) - [Kth Largest Element In a Array](problems/src/divide_and_conquer/KthLargest...
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:... Leetcode 24. Swap Nodes in Pairs ...
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]...
题目链接: Sum of Number and Its Reverse: leetcode.com/problems/s 反转之后的数字和: leetcode.cn/problems/su LeetCode 日更第 286 天,感谢阅读至此的你 欢迎点赞、收藏鼓励支持小满 发布于 2022-11-03 08:39 力扣(LeetCode) 模拟 Python