We are given two strings, A and B. A shift on A consists of taking string A and moving the leftmost character to the rightmost position. For example, if A = 'abcde', then it will be 'bcdea' after one shift on A. Return True if and only if A can becom…

We are given two strings, A and B. A shift on A consists of taking string A and moving the leftmost character to the rightmost position. For example, if A = 'abcde', then it will be 'bcdea' after one shift on A. Return True if and only if A can becom…

这是悦乐书的第317次更新,第338篇原创 在开始今天的算法题前,说几句,今天是世界读书日,推荐两本书给大家,<终身成长>和<禅与摩托车维修艺术>,值得好好阅读和反复阅读. 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第186题(顺位题号是796).给定两个字符串A和B,在A上进行移位操作,规则是将A最左边的字符移动到最右边去.例如,如果A ='abcde',那么在A上移位一次后,它将是'bcdea'.当且仅当A在A上移位一定次数后可以变为B时返回True.…

344. Reverse String 最基础的旋转字符串 class Solution { public: void reverseString(vector<char>& s) { if(s.empty()) return; ; ; while(start < end){ char tmp = s[end]; s[end] = s[start]; s[start] = tmp; start++; end--; } return; } }; 541. Reverse Strin…

Question 796. Rotate String Solution 题目大意:两个字符串匹配 思路:Brute Force Java实现: public boolean rotateString(String A, String B) { if (A.length() != B.length()) return false; if (A.length() == 0) return true; // Brute Force for (int i=0; i<A.length(); i++) {…

STL中的list就是一双向链表,可高效地进行插入删除元素. List 是 C++标准程式库 中的一个 类 ,可以简单视之为双向 连结串行 ,以线性列的方式管理物件集合.list 的特色是在集合的任何位置增加或删除元素都很快,但是不支持随机存取.list 是 C++标准程式库 提供的众多容器(container)之一,除此之外还有 vector .set.map.…等等.list 以模板方式实现(即泛型),可以处理任意型别的变量,包括使用者自定义的资料型态,例如:它可以是一个放置整数(int)型…

Given a string and an offset, rotate string by offset. (rotate from left to right) Example Given "abcdefg". offset=0 => "abcdefg" offset=1 => "gabcdef" offset=2 => "fgabcde" offset=3 => "efgabcd&quo…

Given a string and an offset, rotate string by offset. (rotate from left to right) Example Given "abcdefg" for offset=0, return "abcdefg" for offset=1, return "gabcdef" for offset=2, return "fgabcde" for offset=3, r…

8. Rotate String Description Given a string and an offset, rotate string by offset. (rotate from left to right) Example Given "abcdefg". offset=0 => "abcdefg" offset=1 => "gabcdef" offset=2 => "fgabcde" off…

LeetCode--Reverse String Question Write a function that takes a string as input and returns the string reversed. Example: Given s = "hello", return "olleh". Answer class Solution { public: string reverseString(string s) { string str(s.…

Leetcode 8. String to Integer (atoi) atoi函数实现 (字符串) 题目描述 实现atoi函数,将一个字符串转化为数字 测试样例 Input: "42" Output: 42 Input: " -42" Output: -42 Input: "4193 with words" Output: 4193 Input: "words and 987" Output: 0 详细分析 这道题的cor…

Description Given a string and an offset, rotate string by offset. (rotate from left to right) Example Given "abcdefg". offset=0 => "abcdefg" offset=1 => "gabcdef" offset=2 => "fgabcde" offset=3 => "…

problem 796. Rotate String solution1: class Solution { public: bool rotateString(string A, string B) { if(A.size()!=B.size()) return false; && B.size()==) return true;//errr... ; i<A.size(); ++i) { , i) == B) return true; } return false; } }; s…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 日期 题目地址:https://leetcode.com/problems/rotate-string/description/ 题目描述 We are given two strings, A and B. A shift on A consists of taking string A and moving the leftmost charac…

We are given two strings, A and B. A shift on A consists of taking string A and moving the leftmost character to the rightmost position. For example, if A = 'abcde', then it will be 'bcdea' after one shift on A. Return True if and only if A can becom…

1.题目描述 2.问题分析 直接旋转字符串A,然后做比较即可. 3.代码 bool rotateString(string A, string B) { if( A.size() != B.size() ) return false; if( A.empty() && B.empty() ) return true; ; while( i < A.size() ){ ] ; A += c; A.erase( A.begin() ); if( A == B ) return true;…

We are given two strings, A and B. A shift on A consists of taking string A and moving the leftmost character to the rightmost position. For example, if A = 'abcde', then it will be 'bcdea' after one shift on A. Return True if and only if A can becom…

Rotate an array of n elements to the right by k steps. For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4]. Note:Try to come up as many solutions as you can, there are at least 3 different ways to solve this pro…

Given a list, rotate the list to the right by k places, where k is non-negative. For example: Given 1->2->3->4->5->NULL and k = 2, return 4->5->1->2->3->NULL. 原题链接:https://oj.leetcode.com/problems/rotate-list/ 得到链表长度.链表指向尾节点,…

48. Rotate Image     Total Accepted: 69437 Total Submissions: 198781 Difficulty: Medium You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). 显然的,矩阵旋转. 这里我是多开一个数组来直接赋值,没有原地翻转. 或许原地翻转能更快. package leetcode.…

Rotate Array 本题目收获: 题目: Rotate an array of n elements to the right by k steps. For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4]. 思路: 我的思路:新建一个数组存放旋转后的内容,但是怎么把原数组的内容存放在数组中,不清楚. leetcode/discuss思路: 思路一:新建数组,复制原…

整数 一.整数反转_7 /* 12345 变成 54321 */ public class 整数反转_7 { public static void main(String[] args){ int x = 12345; System.out.println(reverseInt(x)); } public static int reverseInt(int x){ int res = 0; while (x != 0){ int pop = x % 10; if (res > Integer.M…

Given a non-empty string, encode the string such that its encoded length is the shortest. The encoding rule is: k[encoded_string], where the encoded_string inside the square brackets is being repeated exactly k times. Note: k will be a positive integ…

Given an encoded string, return it's decoded string. The encoding rule is: k[encoded_string], where the encoded_string inside the square brackets is being repeated exactly k times. Note that k is guaranteed to be a positive integer. You may assume th…

Given a non-empty string str and an integer k, rearrange the string such that the same characters are at least distance k from each other. All input strings are given in lowercase letters. If it is not possible to rearrange the string, return an empt…

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 =…

Given s1, s2, s3, find whether s3 is formed by the interleaving of s1 and s2. For example, Given: s1 = "aabcc", s2 = "dbbca", When s3 = "aadbbcbcac", return true. When s3 = "aadbbbaccc", return false. 这道求交织相错的字符串和之前…

Given a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively. Below is one possible representation of s1 = "great": great / \ gr eat / \ / \ g r e at / \ a t To scramble the string, we may ch…

Given a list, rotate the list to the right by k places, where k is non-negative. For example:Given 1->2->3->4->5->NULL and k = 2,return 4->5->1->2->3->NULL. 这道旋转链表的题和之前那道Rotate Array 旋转数组 很类似,但是比那道要难一些,因为链表的值不能通过下表来访问,只能一个一个的…

You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Follow up:Could you do this in-place? 在计算机图像处理里,旋转图片是很常见的,由于图片的本质是二维数组,所以也就变成了对数组的操作处理,翻转的本质就是某个位置上数移动到另一个位置上,比如用一个简单的例子来分析: 1  2  3 7  4  1 4  5  6 -…