ZigZag Conversion The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line by line…

题目描述: The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line by line: "PAHN…

Problem: The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line by line: "P…

ZigZag Conversion 看了三遍题目才懂,都有点怀疑自己是不是够聪明... 就是排成这个样子啦,然后从左往右逐行读取返回. 这题看起来很简单,做起来,应该也很简单. 通过位置计算行数: P I N A L S I G Y A H R P I 0,0 1,1 2,2 3,3 4,2 5,1 6,0 (期望) 用简单的先思考: P A H N A P L S I I G Y I R 0,0 1,1 2,2 3,3 4,0 %4 (3+1)可以解决正常的 3,1(期望) 特殊的3(2行2排…

题意:将字符串排成Z字形. PAHNAPLSIIGYIR 如果是5的话,是这样排的 P     I AP   YR H L G N  SI A    I 于是,少年少女们,自己去找规律吧 提示:每个Z字形的字符串和原字符串的每个字母的位子一一映射 class Solution { public: string convert(string s, int numRows) { string t = s; ) return t; ; ; i < s.size(); i += * numRows -…

#-*- coding: UTF-8 -*- #ZigZag Conversion :之字型class Solution(object):    def convert(self, s, numRows):        """        :type s: str        :type numRows: int        :rtype: str        """        if numRows==1:return s     …

The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line by line: "PAHNAPLSII…

题目 The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) And then read line by line: "PAHNAPLSIIGYIR" Write the code…

题目如下: C++代码: #include <iostream> #include <string> using namespace std; class Solution { public: string convert(string s, int numRows) { || s.length() <= numRows) return s; string result; * numRows - ; ; i < numRows; i++){ for (int j = i…

class Solution { public: string convert(string s, int nRows) { string a=""; int len=s.length(); ) return s; //只有n个,不足一个周期||排成一行 -); //teams个完整的周期 -); //最后一个不足完整周期的元素数 ,i=,j=; ;i<nRows;i++){ k=i; ;j<teams;j++){ a+=s[k]; && i!=nRows-…

6. ZigZag Conversion Medium The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read li…

乘风破浪:LeetCode真题_006_ZigZag Conversion 一.前言 到这里我们对基本的问题有了一定的理解,其中字符串的操作一直是一个比较困难的问题,这一点我们需要认真对待,采用合理的方案去解决问题.下面我们就看看将字符串按照某种格式排列之后再按行输出的问题. 二.ZigZag Conversion 2.1 问题理解 2.2 分析以解决问题     看到这样的问题我们最直接的想法就是构造一个二维数组,初始化成某种字符,然后按照题目给定的规则进行填充,填充完成之后按行进行遍历,将结…

1. Longest Palindromic Substring Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example: Input: "babad" Output: "bab" Note: "aba" is also a valid answer. Ex…

6.ZigZag Conversion 题目: The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line b…

The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line by line: "PAHNAPLSII…

1.题目 The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line by line: "PAHNA…

问题描述: The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line by line: "PAHN…

我现在在做一个叫<leetbook>的免费开源书项目,力求提供最易懂的中文思路,目前把解题思路都同步更新到gitbook上了,需要的同学可以去看看 书的地址:https://hk029.gitbooks.io/leetbook/ 006.ZigZag Conversion[E] 题目 The string “PAYPALISHIRING” is written in a zigzag pattern on a given number of rows like this: (you may w…

原题链接 把字符串按照 ↓↗↓……的顺序,排列成一个 Z 形,返回 从左到右,按行读得的字符串. 思路: 建立一个二维数组来按行保存字符串. 按照 ↓↗↓……的方向进行对每一行加入字符. 太慢了这个解法,Runtime: 96 ms, faster than 3.61% of C++. class Solution { public: string convert(string s, int numRows) { ) return s; string res; string zigZag[num…

[python]Leetcode每日一题-扰乱字符串 [题目描述] 使用下面描述的算法可以扰乱字符串 s 得到字符串 t : 如果字符串的长度为 1 ,算法停止 如果字符串的长度 > 1 ,执行下述步骤: 在一个随机下标处将字符串分割成两个非空的子字符串.即,如果已知字符串 s ,则可以将其分成两个子字符串 x 和 y ,且满足 s = x + y . 随机 决定是要「交换两个子字符串」还是要「保持这两个子字符串的顺序不变」.即,在执行这一步骤之后,s 可能是 s = x + y 或者 s =…

今天给大家分享一个Java经典的面试题,题目是这样的: 本题是LeetCode题库中的49题. 将一个字符串数组进行分组输出,每组中的字符串都由相同的字符组成 举个例子:输入["eat","tea","tan","ate","nat","bat"] 输出[["ate","eat","tea"],["nat",…

Question 6. ZigZag Conversion Solution 题目大意:将字符串按Z字型排列,然后再一行一行按字符输出 思路:按题目中的第一个例子,画出如下图,通过n的不同值,可以找出规律红线的长度是2*n-2,蓝线的长度是interval - row,这样根据已知参数知道有n行,所以遍历n行,每行有多少列呢,每一列最后一列必须小于s.length,这样就可以通过遍历来求出最终结果了. Java实现: public String convert(String s, int n)…

The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I I G Y I R And then read line by line: "PAHNAPLSII…

ZigZag ConversionThe string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P   A   H   NA P L S I I GY   I   RAnd then read line b…

Array 448.找出数组中所有消失的数 要求:整型数组取值为 1 ≤ a[i] ≤ n,n是数组大小,一些元素重复出现,找出[1,n]中没出现的数,实现时时间复杂度为O(n),并不占额外空间 思路1:(discuss)用数组下标标记未出现的数,如出现4就把a[3]的数变成负数,当查找时判断a的正负就能获取下标 tips:注意数组溢出 public List<Integer> findDisappearedNumbers(int[] nums) { List<Integer> d…

笔者按照目录刷题,对于每一道题,力争使用效率最高(时间复杂度最低)的算法,并全部通过C++代码实现AC.(文中计算的复杂度都是最坏情况复杂度) 因为考虑到大部分读者已经在Leetcode浏览过题目了,所以每道题都按照 解题思路 -> 实现代码 -> 问题描述 的顺序进行讲解. (笔者目前已刷 40 题,已更新解法 10 题,最近一段时间会频繁更新)可以点击下方链接,直达gitbook: https://codernie.gitbooks.io/leetcode-solutions/conten…

Valid Palindrome吐槽一下Leetcode上各种不定义标准的输入输出(只是面试时起码能够问一下输入输出格式...),此篇文章不是详细的题解,是自己刷LeetCode的一个笔记吧,尽管没有代码,可是略微难一点的都会标出主要思路,便于以后复习 PS:题目中有"水题"两字的都是一遍AC,没有标注的都说明了问题,顺序依照Leetcode上时间倒序排列,少量题目因为和之前的题目有相关性,因此将其放在一起,比方12题和13题,因此中间可能会"缺少"几道题目,缺少的…

6. ZigZag Conversion Total Accepted: 98584 Total Submissions: 398018 Difficulty: Easy The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for bette…

题目:(据说是facebook的面试题哦) The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ... 1 is read off as "one 1" or 11.11 is read off as "two 1s" or 21.21 is read off as "one 2, then one 1&qu…

6. ZigZag Conversion Total Accepted: 98584 Total Submissions: 398018 Difficulty: Easy The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for bette…