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Repeating
[LeetCode] 3.Longest Substring Without
Repeating
Characters (medium)
WelcomeToMyBlog3.LongestSubstringWithoutRepeatingCharacters(medium)3.1.pngBrutesolution因为TimeLimitExceeded不被AC维护两个index找出所有的window,O(n2),每次都检查window内的元素是否有重复,最终导致O(n3)timecomplexity:3.2.pngpublicclass
LittleSasuke
·
2019-12-08 17:19
Longest Substring Without
Repeating
Characters
题目来源给一个字符串,判断里面的最长没有重复字符的子串。我是用哈希表来记录每个字符的最后出现的位置,以及记录一下当前字符串的开始位置,代码如下:classSolution{public:intlengthOfLongestSubstring(strings){intn=s.size();unordered_mapmap;intstart=0,res=0;for(inti=0;i=start)sta
我叫胆小我喜欢小心
·
2019-12-08 00:41
Longest Substring Without
Repeating
Characters
DynamicProgramming解法所谓“连续无重复子串”其实就是“连续无重复子序列”,相比于《674.LongestContinuousIncreasingSubsequence》,无非就是把条件换成了“无重复”,所以我们可以尝试套用之前的思路。设f[i]为:以a[i]结尾的最长连续无重复子串的长度。因为以a[i]结尾的最长连续子串是无重复的,所以以a[i-1]结尾的最长连续子串也是无重复的
hugo54
·
2019-12-08 00:27
Longest Substring Without
Repeating
Characters(medium)
原题链接求最长不连续子序列思路:利用map存储每一个字符上一次出现的位置,遍历string,比较当前位置与上一次出现该字母的位置之差和记录的最大值的大小修改最大值。classSolution{public:mapmaps;intlengthOfLongestSubstring(strings){inti,Max=0,pre=-1;for(i=0;i
弱花
·
2019-12-06 07:49
Longest
Repeating
Substring
原题链接在这里:https://leetcode.com/problems/longest-
repeating
-substring/题目:GivenastringS,findoutthelengthofthelongestrepeatingsubstring
Dylan_Java_NYC
·
2019-12-05 07:00
Longest Substring Without
Repeating
Characters
一、题目LongestSubstringWithoutRepeatingCharacters.png二、解题1)题意题目的意思还是比较好理解的,输入一个字符串,找出没有重复字符的最长子串,返回其长度。例如abcabcbb,abc为最长的无重复字符的子串,如果是abca或者bcab则出现了重复了。2)关键点子串没有重复,即子串里面没有重复的字符。子串是需要连续的。三、思考:使用遍历的方式,存储最长的
乐乐可爱睡觉
·
2019-12-01 10:51
Longest Substring Without
Repeating
Characters
RelatedTopics:[HashTable][TwoPointers][String]SimilarQuestions[LongestSubstringwithAtMostTwoDistinctCharacters]题目:Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.Forexample,t
lijia069
·
2019-11-30 05:15
swift学习笔记 集合类型
swift时的笔记,略简单一、数组(Arrays)1、创建数组://1varsomeInts=[Int]()someInts.append(22)print(someInts)//2varaaa=Array(
repeating
走走婷婷1215
·
2019-11-29 10:19
CSS3 渐变
div{width:200px;height:200px;background-image:
repeating
-linear-gradient(toright,red10%,green20%);}渐变分为线性渐变和径向渐变两种
不教一日闲过
·
2019-11-26 14:00
LeetCode第3题 无重复字符的最长子串(Longest Substring Without
Repeating
Characters)
文章目录题目地址题目描述代码实现题目地址题目地址https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters
ThinkWon
·
2019-11-17 21:18
LeetCode
QA:无重复字符的最长子串
无重复字符的最长字串leetcode地址:https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters/
tulipgirl
·
2019-11-10 14:00
Leetcode - Longest Substring with At Least K
Repeating
Characters
Mycode:publicclassSolution{publicintlongestSubstring(Strings,intk){if(s==null||s.length()
Richardo92
·
2019-11-06 07:09
Longest Substring Without
Repeating
Characters
题目要求找出一个字符串中最长的没有重复字符的子串长度。如pwwkew中的不含重复字符的最长子串为wke(kew也行),长度都为3。不过最后一个用例的长度有点蛋疼。。开始的O(n2)的算法就超时了。最暴力的解法这个很容易想到,既然你要求不含重复字符的最长子串,那我把所有满足要求的子串都求出来,最后求个最大值就可以了。因为没有空间限制,这里存储用了一个Set来保证不重复publicintlengthO
uzck
·
2019-11-05 15:14
Swift-数组实现三个栈
init(
repeating
:nil,count:30)varstackPointer:[Int]=[-1,-1,-1]funcpush(stackNum:Int,value:Int){ifstackNum
FlyElephant
·
2019-11-05 03:44
The importance and effectiveness of learning by
repeating
aloud whole sentences!
Dearfriends,Iwanttoremindyoualloftheimportanceandeffectivenessoflearningbyrepeatingaloudwholesentences!Ofhearingandspeakingshortsentences.Theaudiomemory,thehearingsenseisaforgottenpowertoolinourarsena
别别问我是谁
·
2019-11-05 00:03
[Leetcode] Longest Substring Without
Repeating
Characters
原题:https://leetcode.com/problems/longest-substring-without-
repeating
-characters/description/Givenastring
Azurelore
·
2019-11-03 13:36
javascript初探LeetCode之3.Longest Substring Without
Repeating
Characters
题目Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.exampleGiven"abcabcbb",theansweris"abc",whichthelengthis3.Given"bbbbb",theansweris"b",withthelengthof1.Given"pwwkew",theansw
ThereThere_0d70
·
2019-11-02 17:14
Leetcode 3: Longest Substring Without
Repeating
Characters
求解最长不重复子串Python3实现:源代码已上传Github,持续更新。"""3.LongestSubstringWithoutRepeatingCharactersGivenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.Examples:Given"abcabcbb",theansweris"abc",
e227f7966522
·
2019-11-02 03:54
Longest Substring Without
Repeating
Characters
原题:https://leetcode.com/problems/longest-substring-without-
repeating
-characters/?
DrunkPian0
·
2019-10-30 19:51
【leetcode】424 替换后的最长重复字符(滑动窗口,双指针)
题目链接:https://leetcode-cn.com/problems/longest-
repeating
-character-replacement/题目描述给你一个仅由大写英文字母组成的字符串,
zjwreal
·
2019-10-24 20:44
LeetCode
滑动窗口
双指针
Longest Substring with At Least K
Repeating
Characters(Sliding Window)
LongestSubstringwithAtLeastKRepeatingCharactersMediumFindthelengthofthelongestsubstringTofagivenstring(consistsoflowercaselettersonly)suchthateverycharacterinTappearsnolessthanktimes.Example1:Input:s=
da_kao_la
·
2019-10-21 13:44
LeetCode
C++双指针滑动和利用Vector实现无重复字符的最长子串—力扣算法
题目:力扣原题链接:https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters/给定一个字符串,请你找出其中不含有重复字符的最长子串的长度
Foxer_Z
·
2019-10-16 18:00
C++双指针滑动和利用Vector实现无重复字符的最长子串—力扣算法
题目:力扣原题链接:https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters/给定一个字符串,请你找出其中不含有重复字符的最长子串的长度
Foxer_Z
·
2019-10-16 18:00
3_Longest Substring Without
Repeating
Characters
3_LongestSubstringWithoutRepeatingCharacters一、题目详情 题意很清晰,给定字符串,求出不含重复字母的最长子串的长度。二、解题方法第一种方法:直接暴力搜索 这种方法,求出给定字符串的每一个子串,判断子串是否满足没有重复字母的条件,由此求出最长的复合条件的子串。其中求字符串的所有子串,设定两个变量i和j,i是子串的开始位置,j是子串的结束位置。通过两层循
Mrfanl
·
2019-10-14 22:00
算法天天练1:计算最长子串
题目来源:https://leetcode.com/problems/longest-substring-without-
repeating
-characters/solution/问题描述:计算一个字符串的最长子串的长度
编码砖家
·
2019-10-08 10:00
JS旋转和css旋转
js旋转div{background:
repeating
-linear-gradient(45deg,red,yellow20%);width:200px;height:200px;border-radius
牛耀民
·
2019-10-01 21:00
【LeetCode】424. 替换后的最长重复字符 结题报告 (python)
原题地址:https://leetcode-cn.com/problems/longest-
repeating
-character-replacement/题目描述:给你一个仅由大写英文字母组成的字符串
暮雨凉初透
·
2019-09-20 15:18
LeetCode
html5借用
repeating
-linear-gradient实现一把刻度尺(ruler)
像刻度这种东西都是重复性的,说到重复我就想到了
repeating
-linear-gradient,看名字就能知道是重复线性渐变,它能更方便的实现隔行变色的功能,如果你想画一个背景,它是重复、隔行的,那么用它就没错了
聪明的汤姆
·
2019-09-09 15:19
Longest Substring Without
Repeating
Characters
题目描述:Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.Example1:Input:"abcabcbb"Output:3Explanation:Theansweris"abc",withthelengthof3.Example2:Input:"bbbbb"Output:1Explanation:
chenxli23
·
2019-09-03 14:23
Leetcode刷题之旅
Longest Substring Without
Repeating
Characters
Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.Example1:Input:"abcabcbb"Output:3Explanation:Theansweris"abc",withthelengthof3.Example2:Input:"bbbbb"Output:1Explanation:Thean
琴影
·
2019-08-30 00:00
3.无重复字符的最长子串
https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters/题目:给定一个字符串,请你找出其中不含有重复字符的最长子串的长度
IFollowRivers
·
2019-08-22 20:39
滑动窗口
字符串
无重复
LeetCode
length of the longest substring without
repeating
character
findthelengthofthelongestsubstringwithoutrepeatingcharacters.来源:力扣(LeetCode)链接:https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters
追寻风口的猪
·
2019-08-16 22:00
css3 重复渐变背景
repeating
-linear-gradient
.address-line{width:100%;height:6rpx;/*Safari5.1to6.0*/background:-webkit-
repeating
-linear-gradient(135deg
PandaSong33
·
2019-07-30 20:29
前端
css3
重复渐变
Longest Substring Without
Repeating
Characters
题目地址题目要求:Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.主要思路:除了bruteforce之外,可以使用slidingwindow的思路来解决,即在碰到与前面的substring相同的character的时候将substring向右滑动再重新寻找。代码:deflengthOfLongest
yuejia3000
·
2019-07-27 17:00
python错误小计:if错误,应当改为while
使用滑动窗口计算无重复字符的最长子串:https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters/solution
MiaL
·
2019-07-25 17:17
Python
Leetcode刷题——无重复字符的最长子串
题目链接:https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters/示例1输入:"abcabcbb"
XHHP
·
2019-07-23 23:06
LeetCode
算法
无重复字符的最长子串
LeetCode第3题思悟——无重复字符的最长子串(longest-substring-without-
repeating
-characters)
第三题题目要求Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.(给定一个字符串,请你找出其中不含有重复字符的最长子串的长度。)示例输入:“abcabcbb”输出:3解释:因为无重复字符的最长子串是“abc”,所以其长度为3。输入:“bbbbb”输出:1解释:因为无重复字符的最长子串是“b”,所以其长
Nil Xuan
·
2019-07-19 08:05
LeetCode思悟
leetcode算法题(3)--不含重复字符的最长子串长度-Longest Substring Without
Repeating
Characters
整理自己对一些leetcode算法题的想法和实现,一直努力,每天都有新提高–来自一个热爱编程的程序媛1.LeetCode地址:LongestSubstringWithoutRepeatingCharacters2.难度:medium3.题目:Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.4.思路1
Jumay0612
·
2019-07-17 09:41
数据结构和算法
LeetCode
LeetCode03 - 无重复字符的最长子串(Java 实现)
LeetCode03-无重复字符的最长子串(Java实现)来源:力扣(LeetCode)链接:https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters
xpwi
·
2019-07-14 23:00
Longest Substring Without
Repeating
Characters
题目描述:Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.Example1:Input:"abcabcbb"Output:3Explanation:Theansweris"abc",withthelengthof3.Example2:Input:"bbbbb"Output:1Explanation:
咿咿呀呀呀
·
2019-07-03 00:39
leetcode
LeetCode 3 Longest Substring Without
Repeating
Characters
题目Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.Example1:Input:"abcabcbb"Output:3Explanation:Theansweris"abc",withthelengthof3.Example2:Input:"bbbbb"Output:1Explanation:The
乌鲁木齐001号程序员
·
2019-06-27 12:35
Longest Substring Without
Repeating
Characters
LeetCode:3.LongestSubstringWithoutRepeatingCharactersGivenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.题目的意思就是求解一个字符串的最长无重复字符的连续子串。思路一(暴力求解)直接暴力求解,依次遍历字符串中的每个字符,以这个字符为起点向后查找,有重
Wisimer
·
2019-06-21 09:13
LeetCode
《LeetCode-0003》 无重复字符的最长子串-Longest Substring Without
Repeating
Characters
https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters/题目给定一个字符串,请你找出其中不含有重复字符的最长子串的长度
onlyloveyd
·
2019-06-01 08:29
Java
3 Longest Substring Without
Repeating
Characters(无重复字符的最长子串)Python实现
版权申明:原创文章,未经博主同意,不得转载!LongestSubstringWithoutRepeatingCharacters(无重复字符的最长子串),其内容如下:给定一个字符串,请你找出其中不含有重复字符的最长子串的长度。示例1:输入:"abcabcbb"输出:3解释:因为无重复字符的最长子串是"abc",所以其长度为3。示例2:输入:"bbbbb"输出:1解释:因为无重复字符的最长子串是"b
iMotherBoard
·
2019-05-26 12:08
Python
for
LeetCode
Longest Substring Without
Repeating
Characters
Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.Example1:Input:"abcabcbb"Output:3Explanation:Theansweris"abc",withthelengthof3.Example2:Input:"bbbbb"Output:1Explanation:Thean
Eternity丶
·
2019-04-30 13:04
LeetCode
C++
LeetCode
LeetCode(3):无重复字符的最长子串 Longest Substring Without
Repeating
Characters(Java)
2019.4.18#程序员笔试必备#LeetCode从零单刷个人笔记整理(持续更新)依旧,字符串问题优先考虑动态规划~这道题可以采用滑动窗口策略。设立begin和end指针标志窗口的两端,建立一个HashSet来保存窗口内的元素。当end对应元素不存在HashSet中时,end前移;当end对应元素存在HashSet中时,将元素从set中删除并将begin前移,直到删去end为止。全程取最大的窗口
NJU_ChopinXBP
·
2019-04-18 21:41
数据结构与算法
JAVA
LeetCode
UVa202 -
Repeating
Decimals
题目UVa202解读首先考虑到所有的类型都无法有无法储存50位以上小数之多,所以决定使用数组来储存:分两个数组,一个数组用于储存每一次的余数(用于下一位计算),另一个用于储存每一次的商(用于储存结果)。当小数里面出现循环,就意味着循环开始和结束的位置对应的余数和商是一样的。所以每求一位,就遍历之前的结果中有无相同的即可。代码#defineMAXN100000#include#includeintm
Deemo_4000
·
2019-04-12 18:44
003-Longest Substring Without
Repeating
Characters
LongestSubstringWithoutRepeatingCharactersGivenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.Examples:Given"abcabcbb",theansweris"abc",whichthelengthis3.Given"bbbbb",theansweris
英武
·
2019-04-09 10:10
Longest Substring Without
Repeating
Characters(HashMap)
题目描述Givenastring,findthelengthofthelongestsubstringwithoutrepeatingcharacters.Example1:Input:“abcabcbb”Output:3Explanation:Theansweris“abc”,withthelengthof3.思路维护一个字典保存每个字符上次出现的位置,一个变量保存最大子串的起始点。代码与注释c
YorkChu
·
2019-04-05 22:56
leetcode
2、无重复字符的最长子串-python3
题目:https://leetcode-cn.com/problems/longest-substring-without-
repeating
-characters/方法一:可以改用hash/字典classSolution
春树暮云_
·
2019-03-07 18:11
LeetCode
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