Palindromic

Palindromic Number

题目链接：https://www.patest.cn/contests/pat-a-practise/1024题意：给一个数字，不断加上这个数字所有位反过来的数字，最多k次，问第几次能变成回文串。会爆longlong。用字符串来做就好。#include#include#include#include#includeusingnamespacestd;boolcheck(stringn){for(i
Strokess·2020-07-27 17:34

1019 General Palindromic Number (20分)测试点2 4

刚开始用的string来判断是否是回文数，结果有两个测试点过不去，之后发现是有的数可能大于10，这时候无法表示，所以进行了修改。刚开始的写法：#include#include#include#includeusingnamespacestd;stringgetNum(intnum,intradix){intr=0;stringres;while(num!=0){r=num%radix;res+=(
malloc_88·2020-07-16 17:26

Longest Palindromic Substring

寻找最长回文子串——Manacher算法，时间复杂度是O(n)网上看到的资料中感觉这一篇是讲的最清楚的：最长回文子串——Manacher算法-曾会玩-SegmentFault下面说明一下可能存在的一个疑问：当i在MaxRight的左边时，若RL[2*pos-i]!=MaxRight-i，则RL[i]=min(RL[2*pos-i],MaxRight-i)(根据对称性推出)，而当RL[2*pos-i
huangmi2958·2020-07-16 00:12

Palindromic Substrings

Givenastring,yourtaskistocounthowmanypalindromicsubstringsinthisstring.Thesubstringswithdifferentstartindexesorendindexesarecountedasdifferentsubstringseventheyconsistofsamecharacters.Example1:Input:"
huanghanqian·2020-07-16 00:05

回文串算法(中心扩展法、Manacher算法)

题目链接：https://leetcode-cn.com/problems/longest-palindromic-substring/submissions/题目：返回给定串的最长回文子串。
WA_automation·2020-07-14 20:01

Longest Palindromic Substring

Givenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.Example:Input:"babad".Output:"bab".Note:"aba"isalsoavalidanswer.Input:"cbbd".Output:"bb".Solution1：依次作为中心点
sherwin29·2020-07-14 15:38

【PAT A1019】1019 General Palindromic Number (20)（20 分）

AnumberthatwillbethesamewhenitiswrittenforwardsorbackwardsisknownasaPalindromicNumber.Forexample,1234321isapalindromicnumber.Allsingledigitnumbersarepalindromicnumbers.Althoughpalindromicnumbersaremos
AdmondGuo·2020-07-14 14:08

Longest Palindromic Substring

题目GivenastringS,findthelongestpalindromicsubstringinS.YoumayassumethatthemaximumlengthofSis1000,andthereexistsoneuniquelongestpalindromicsubstring.答案一道动规题目，每次用当前位置columnIndex跟前面位置rowIndex去比较时，如果相同的话，就
aoyuan4706·2020-07-14 07:45

判断一个整数是否为回文数

详细的回文数介绍请参考维基百科：http://en.wikipedia.org/wiki/Palindromic_number解法1：转换成字符串这种方法不仅可以判断一个数是否为回文数，还可以判断文本字符串是否是回文的
man_of_sillyy·2020-07-14 00:51

力扣练习第三天——最长回文子串

给定一个字符串s，找到s中的最长的回文子串，可以假设s的最大长度为1000试题来源于LeetCode——最长回文子串：https://leetcode-cn.com/problems/longest-palindromic-substring
泰弗伊德·2020-07-12 13:42

【LeetCode】最长回文子串

示例2：输入:"cbbd"输出:"bb"来源：力扣（LeetCode）链接：https://leetcode-cn.com/problems/longest-palindromic-substring网络上有了好几种解法
王啸tr1912·2020-07-12 01:16

Palindromic Number (25)

#include#includeusingnamespacestd;strings;voidadd(stringt){intlen=s.length(),carry=0;for(inti=0;i'9'){s[i]=s[i]-10;carry=1;}}if(carry)s+='1';reverse(s.begin(),s.end());}intmain(){intcnt,i;cin>>s>>cnt;
LEO__Sue·2020-07-10 20:38

1024 Palindromic Number (25分)

1024PalindromicNumber(25分)AnumberthatwillbethesamewhenitiswrittenforwardsorbackwardsisknownasaPalindromicNumber.Forexample,1234321isapalindromicnumber.Allsingledigitnumbersarepalindromicnumbers.Non-pa
one joker·2020-07-10 14:40

Golang学习之路 - LeetCode-Go-Learning 第五题. 最长回文子串

Golang基础[5.LongestPalindromicSubstring](https://leetcode.com/problems/longest-palindromic-substring/)
赵莫寒·2020-07-10 14:34

Longest Palindromic Substring

Givenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.Example1:Input:“babad”Output:“bab”Note:“aba”isalsoavalidanswer.Example2:Input:“cbbd”Output:“bb”methoddp字符串
Vendredimatin·2020-07-09 23:44

Palindromic Substrings(找出字符串中所有的回文子串)

Givenastring,yourtaskistocounthowmanypalindromicsubstringsinthisstring.Thesubstringswithdifferentstartindexesorendindexesarecountedasdifferentsubstringseventheyconsistofsamecharacters.Example1:Input:"
菜鸟Octopus·2020-07-09 06:39

Longest Palindromic Substring

题目：GivenastringS,findthelongestpalindromicsubstringinS.YoumayassumethatthemaximumlengthofSis1000,andthereexistsoneuniquelongestpalindromicsubstring.题意：给定一个字符串S，找到给定S字符串中最长的回文子串，可以假定给定的字符串最大长度为1000，字符串
清风恋歌·2020-07-09 05:56

Longest Palindromic Substring

文章目录LeetCode5.LongestPalindromicSubstringO(N^2)解法O(N)解法LeetCode5.LongestPalindromicSubstringLeetCode题解专栏：LeetCode题解LeetCode所有题目总结：LeetCode所有题目总结大部分题目C++，Python，Java的解法都有。题目地址：Givenastrings,findthelong
zhang0peter·2020-07-09 05:44

Longest Palindromic Substring

Givenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.Example:Input:"babad"Output:"bab"Note:"aba"isalsoavalidanswer.Example:Input:"cbbd"Output:"bb"
陆文斌·2020-07-09 01:15

Longest Palindromic Substring

Medium处理情况有三种，处理方法本质上是一种动态规划，现在的状态取决于前一个状态Substring长度为1的都是palindrome长度为2的就判断两个char是不是相等就行上面两个相当于动归的basecase长度大于2时就要根据charAt(i)==charAt(j)&&isPalindrome(i,j)来确定了classSolution{publicStringlongestPalindr
greatfulltime·2020-07-09 01:06

LeetCode题解-5-Longest Palindromic Substring

2019独角兽企业重金招聘Python工程师标准>>>解题思路题目是查找最长的回文子串。如果某个字符串是一个回文串，那么形式可能是cbabc，或cbaabc的形式，要找到最长的回文子串，可以以某个字符a开始，区分长度是奇数还是偶数，向左右两边一直比较，直到找到不同的字符。找到的字符就是以a为中心的最长回文子串。这样，只要遍历字符串，找到每个字符为中心的最长回文子串，就可以得到最终结果了。参考源码p
weixin_34161083·2020-07-08 17:07

leetcode — longest-palindromic-substring

importjava.util.Arrays;/***Source:https://oj.leetcode.com/problems/longest-palindromic-substring/**Createdbylverpengon2017
weixin_33936401·2020-07-08 16:48

LeetCode #4 Longest Palindromic Substring

QuestionGivenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.即求最长回文子串（注意和最长回文子序列的区别，子串是连续的子序列可以是非连续的）Example1:Input:"babad"Output:"bab"Note:"aba"isalsoavalidan
weixin_30634661·2020-07-08 14:20

leetcode题解5-Longest Palindromic Substring

题目:Givenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.Example1:Input:"babad"Output:"bab"Note:"aba"isalsoavalidanswer.Example2:Input:"cbbd"Output:"bb"思路：遍历字符串
沙丁鱼鱼鱼·2020-07-08 11:55

Longest Palindromic Substring题解

文章目录题目5.LongestPalindromicSubstring分析思路一：动态规划思路二：（从中央位置开始）双向扩展扫描题解思路一Java实现思路二Java实现题目5.LongestPalindromicSubstringGivenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengtho
孑辞·2020-07-08 01:29

LeetCode题解之动态规划（longest-palindromic-substring）

longest-palindromic-substringclassSolution{public:/*动态规划求解最长回文串时间复杂度为O(n^2)dp[i][j]为true表示下标i~j的子串是回文串以
城阙·2020-07-07 20:40

Palindromic Substrings && 5. Longest Palindromic Substring

题目：Givenastring,yourtaskistocounthowmanypalindromicsubstringsinthisstring.Thesubstringswithdifferentstartindexesorendindexesarecountedasdifferentsubstringseventheyconsistofsamecharacters.Example1:Inpu
liuchongee·2020-07-07 14:23

Longest Palindromic Substring（最长回文子串）

原题网址：https://leetcode.com/problems/longest-palindromic-substring/GivenastringS,findthelongestpalindromicsubstringinS.YoumayassumethatthemaximumlengthofSis1000
jmspan·2020-07-07 11:28

Longest Palindromic Substring

题意在一个字符串中找最长回文子串思路manacher算法模板题时间复杂度O(n)代码intlen[5005];classSolution{public:stringlongestPalindrome(strings){stringtemp="$#";for(inti=0;imx){mx=i+len[i];id=i;}if(len[i]>reslen){reslen=len[i];rescenter
Tan Jiang·2020-07-07 11:07

Longest Palindromic Substring

题目Givenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.Example:Input:"babad"Output:"bab"Note:"aba"isalsoavalidanswer.Example:Input:"cbbd"Output:"bb"解法一：动态规划解法分
gexlei·2020-07-07 08:49

回文子串（Palindromic Substrings）

Leetcode之动态规划（DP）专题-647.回文子串（PalindromicSubstrings）给定一个字符串，你的任务是计算这个字符串中有多少个回文子串。具有不同开始位置或结束位置的子串，即使是由相同的字符组成，也会被计为是不同的子串。示例1:输入:"abc"输出:3解释:三个回文子串:"a","b","c".示例2:输入:"aaa"输出:6说明:6个回文子串:"a","a","a","a
denghan1065·2020-07-07 06:31

LeetCode 5 : Longest Palindromic Substring ---- 最长回文

原题链接：https://leetcode.com/problems/longest-palindromic-substring/一：原题内容GivenastringS,findthelongestpalindromicsubstringinS.YoumayassumethatthemaximumlengthofSis1000
LaoJiu_·2020-07-06 22:54

Leetcode题解-6.regular-expression-matching

[TOC]题目背景https://leetcode-cn.com/problems/longest-palindromic-substring/给你一个字符串s和一个字符规律p，请你来实现一个支持'.'
A94583879·2020-07-06 20:43

Longest Palindromic Substring

LongestPalindromicSubstring题意给一个字符串，找到最长的回文子串。题解对串中的每个字符，分别向左右延伸，找到一个回文子串。回文串长度可以是奇数，也可以是偶数，这得注意。classSolution{public://88msstringlongestPalindrome(strings){stringans;for(inti=0;ians.length())ans=oddS
exmy·2020-07-06 20:03

Longest Palindromic Substring

5.LongestPalindromicSubstringGivenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.Example:Input:"babad"Output:"bab"Note:"aba"isalsoavalidanswer.Example:Input:"
hzw2945·2020-07-06 16:49

Longest Palindromic Substring

描述Givenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.Example:Input:“babad”Output:“bab”Note:“aba”isalsoavalidanswer.Example:Input:“cbbd”Output:“bb”难度：medium这道
bowen_wu_·2020-07-06 16:22

Longest Palindromic Substring（dp，manacher算法）

题目链接https://leetcode.com/problems/longest-palindromic-substring解题思路：求解最长公共子串问题暴力求解，时间复杂度o(n3)o(n^3)o(
totororz·2020-07-06 13:34

Palindromic Substrings

DescriptionGivenastring,yourtaskistocounthowmanypalindromicsubstringsinthisstring.Thesubstringswithdifferentstartindexesorendindexesarecountedasdifferentsubstringseventheyconsistofsamecharacters.Examp
Nancyberry·2020-07-06 09:43

Leetcode5 最长回文子串 C++,Java,Python

LeetCode5最长回文子串来源：力扣（LeetCode）链接：https://leetcode-cn.com/problems/longest-palindromic-substring/博主Github
Rp_·2020-07-06 03:20

leetcode5.Longest Palindromic Substring

返回最长回文串Example1:Input:"babad"Output:"bab"Note:"aba"isalsoavalidanswer.Example2:Input:"cbbd"Output:"bb"解题思路：定义下标i,j，booleandp[i][j]动态规划思想：要求大的，先求小的边界：dp[i][j]=truei==j单个字符一定为truestr[i]==str[j]&&j-i==1两
徐海兴·2020-07-05 17:31

Longest Palindromic Substring

【题目】Givenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.【举例】Example1:Input:"babad"Output:"bab"Note:"aba"isalsoavalidanswer.Example2:Input:"cbbd"Output:"bb"【题目
sjk1996·2020-07-05 12:53

leetCode 5 Longest Palindromic Substring

https://leetcode.windliang.cc/第一时间发布题目描述（中等难度）image给定一个字符串，输出最长的回文子串。回文串指的是正的读和反的读是一样的字符串，例如"aba"，"ccbbcc"。解法一暴力破解暴力求解，列举所有的子串，判断是否为回文串，保存最长的回文串。publicbooleanisPalindromic(Strings){intlen=s.length();f
windliang·2020-07-05 10:46

Palindromic Twist

http://codeforces.com/problemset/problem/1027/Aabs()的意思是求绝对值的意思#includeusingnamespacestd;intmain(){intt;cin>>t;while(t--){intn,i,j;strings;cin>>n>>s;intflas=1;for(i=0,j=n-1;i
chen_zan_yu·2020-07-05 08:08

Palindromic Twist（字符串变化+回文的判断）

题目链接A.PalindromicTwisttimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputYouaregivenastringsconsistingofnlowercaseLatinletters.niseven.Foreachpositioni(1≤i≤n)i
小自洽·2020-07-04 04:32

Educational Codeforces Round 49 (Rated for Div. 2) problem A Palindromic Twist

ProblemDescriptionYouaregivenastringssconsistingofnnlowercaseLatinletters.nniseven.Foreachpositionii(1≤i≤n1≤i≤n)instringssyouarerequiredtochangetheletteronthispositioneithertothepreviousletterinalphab
相思明月楼·2020-07-04 04:48

Educational Codeforces Round 89 (Rated for Div. 2) C - Palindromic Paths(回文路径，思维)

题目链接题意给你一个n*m的01矩阵，现在我们要从起点(1,1)到(n,m)并且每一步只能向下或者向右走，现在要求他能走到终点的路径必须全部是回文(比如01010)，问最少改动多少个元素，使得满足条件思路:例:矩阵为1.首先，要是路径为回文，那么我现在走的第一步，和最后走的一步肯定要相等(废话)。2.首先从起点我们第一步能走到(1,2)和(2,1)这俩个坐标，那么他们走到的最后一步是(n-1,m)
要无愧于人·2020-07-02 12:23

大整数运算（三）（PAT）A1024.Palindromic Number

题目描述：AnumberthatwillbethesamewhenitiswrittenforwardsorbackwardsisknownasaPalindromicNumber.Forexample,1234321isapalindromicnumber.Allsingledigitnumbersarepalindromicnumbers.Non-palindromicnumberscanbe
皮蛋瘦肉没有肉·2020-06-30 21:36

Longest Palindromic Substring(三种解法及Manacher算法详解)

LeetCode-5.LongestPalindromicSubstring(三种解法及Manacher算法详解)Manacher总结普通方法解决此题动态规划解决此题Manacher解决此题题目链接Manacher总结Mancher解决的是求最长回文子串的长度的问题，这里有一个原题是Hdu-3068。首先我们可以暴力的从每个位置开始扩展，比较是否相等，这样的时间复杂度是O(n2)(这个方法在下面有
zxzxin·2020-06-30 20:09

Longest Palindromic Substring(C++)

Givenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.Example1:Input:"babad"Output:"bab"Note:"aba"isalsoavalidanswer.Example2:Input:"cbbd"Output:"bb"classSoluti
张荣华_csdn·2020-06-30 19:07

Longest Palindromic Substring

5.LongestPalindromicSubstringGivenastrings,findthelongestpalindromicsubstringins.Youmayassumethatthemaximumlengthofsis1000.Example:Input:"babad"Output:"bab"Note:"aba"isalsoavalidanswer.Example:Input:"
zjwreal·2020-06-30 18:06
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