[LeetCode] Reverse Words in a String II
Problem Description: 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 ....
[LeetCode] Reverse Nodes in k-Group
Well, since the head pointer may also be modified, we create a new_head that points to it to facilitate the reverse process. For the example list 1 -> 2 -> 3 -> 4 -&g...
[LeetCode 第4题] -- Evaluate Reverse Polish Notation
题目链接: Evaluate Reverse Polish Notation 题目意思: 给的一个表达式,求值 代码: class Solution { public: bool IsOperator(const string &str); int GetStackTop(stack<int> &stack); int evalRP...
[LeetCode]--206. Reverse Linked List
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? 贴个递归代码,一次Accept。 public ListNode revers...
[LeetCode]--345. Reverse Vowels of a String
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”. Note: Th...
[LeetCode] Evaluate Reverse Polish Notation
Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand may be an integer or another expression. Some examples: ["2", "1", "+", "3", ...
[LeetCode] 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". Clarification: 1.What constitutes a word? A sequence of non-space cha...
[LeetCode] Reverse Linked List I II - 链表翻转问题
题目概述: Reverse a singly linked list. 翻转一个单链表,如:1->2 输出 2->1;1->2->3 输出3->2->1。 题目解析: 本人真的比较笨啊!首先想到的方法就...
[LeetCode] Number of 1 Bits & Reverse Integer - 整数问题系列
目录:1.Number of 1 Bits - 计算二进制1的个数 [与运算] 2.Contains Duplicate - 是否存在重复数字 [遍历]3.Reverse Integer - 翻转整数 [int边界问题]4.Excel Sheet Column Number - Excel字符串转整数 [简单]5.Power of Two & Happy Number...
LeetCode之Reverse String II
1、题目Given a string and an integer k, you need to reverse the first k characters for every 2k characters counting from the start of the string. If there are less than k characters left, reverse all of....
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