Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the length of a longest substring containing all repeating letters you can get after performing the abo…

Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the length of a longest substring containing all repeating letters you can get after performing the abo…

Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the length of a longest substring containing all repeating letters you can get after performing the abo…

1. Question Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the length of a longest substring containing all repeating letters you can get after perfor…

原题链接在这里:https://leetcode.com/problems/longest-repeating-character-replacement/description/ 题目: Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the leng…

作者: 负雪明烛 id: fuxuemingzhu 公众号:每日算法题 本文关键词:LeetCode,力扣,算法,算法题,字符串,双指针,刷题群 目录 题目描述 题目大意 解题方法 双指针 代码 欢迎加入组织 日期 题目地址:https://leetcode.com/problems/longest-repeating-character-replacement/description/ 题目描述 Given a string that consists of only uppercase En…

题目如下: Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the length of a longest substring containing all repeating letters you can get after performing t…

Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the length of a longest substring containing all repeating letters you can get after performing the abo…

""" Given a string s that consists of only uppercase English letters, you can perform at most k operations on that string. In one operation, you can choose any character of the string and change it to any other uppercase English character.…

给你一个仅由大写英文字母组成的字符串,你可以将任意位置上的字符替换成另外的字符,总共可最多替换 k 次.在执行上述操作后,找到包含重复字母的最长子串的长度.注意:字符串长度 和 k 不会超过 104.示例 1:输入:s = "ABAB", k = 2输出:4解释:用两个'A'替换为两个'B',反之亦然.示例 2:输入:s = "AABABBA", k = 1输出:4解释:将中间的一个'A'替换为'B',字符串变为 "AABBBBA".子串 &qu…

以最左边为开始,往右遍历,不一样的个数大于K的时候停止,回到第一个不一样的地方,以它为开始,继续.. 用QUEUE记录每次不一样的INDEX,以便下一个遍历开始, 从左往右,从右往左各来一次..加上各种剪枝情况,比如未遍历的数量<剩余K的数量,比如已经记录过某个INDEX了.. 然后TLE了...最后放TLE的方法..不知道有什么意义.. 上面的做法是左右各来一次,那是否可以使用滑窗呢.. 然后没做出来..看了讨论区..果然是滑窗.. 思路: 统计当前滑窗内最多的字母,窗口宽度 - 最多字母数量…

2018-06-29 22:56:24 问题描述: 问题求解: 本题是一条字符串问题,且是求Optimal,自然最初想到的是使用DP来进行求解,但是问题就是如果采用DP的话,前一个状态也太多了,和替换了多少了k值相关,因此从这个角度来说,使用DP来处理本题是不太合适的. 那么,另一个处理的手段滑动窗口就呼之欲出了. 在本题中窗口[start, end]来维护,其中只要窗口长度 - 窗口中出现字符最多的个数 <= k则当前窗口的长度符合题意,只要找出最长的符合条件的窗口即可. 问题是如果出现了上述…

原题链接在这里:https://leetcode.com/problems/swap-for-longest-repeated-character-substring/ 题目: Given a string text, we are allowed to swap two of the characters in the string. Find the length of the longest substring with repeated characters. Example 1: In…

原题链接在这里:https://leetcode.com/problems/longest-repeating-substring/ 题目: Given a string S, find out the length of the longest repeating substring(s). Return 0 if no repeating substring exists. Example 1: Input: "abcd" Output: 0 Explanation: There…

题目如下: Given a string text, we are allowed to swap two of the characters in the string. Find the length of the longest substring with repeated characters. Example 1: Input: text = "ababa" Output: 3 Explanation: We can swap the first 'b' with the…

Description Given a string, find length of the longest repeating subsequence such that the two subsequence don’t have same string character at same position, i.e., any ith character in the two subsequences shouldn’t have the same index in the origina…

第一种方法,用栈实现,最容易想到,也比较容易实现,每次碰到‘)’时update max_len,由于要保存之前的‘(’的index,所以space complexity 是O(n) // 使用栈,时间复杂度 O(n),空间复杂度 O(n) class Solution { public: int longestValidParentheses(string s) { , last = -; stack<int> lefts; ; i < s.size(); ++i) { if (s[i]…

LeetCode--Longest Consecutive Sequence Question Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example, Given [100, 4, 200, 1, 3, 2], The longest consecutive elements sequence is [1, 2, 3, 4]. R…

[LeetCode]397. Integer Replacement 解题报告(Python) 标签: LeetCode 题目地址:https://leetcode.com/problems/integer-replacement/description/ 题目描述: Given a positive integer n and you can do operations as follow: If n is even, replace n with n/2. If n is odd, you…

Find the length of the longest substring T of a given string (consists of lowercase letters only) such that every character in T appears no less than k times. Example 1: Input: s = "aaabb", k = 3 Output: 3 The longest substring is "aaa"…

Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest subst…

Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2: Input: "bbbbb" Output: 1 Explana…

最长无重复字符的子串 Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2: Input: "bbbbb" Output…

Given a string, find the length of the longest substring without repeating characters. 来源:力扣(LeetCode)链接:https://leetcode-cn.com/problems/longest-substring-without-repeating-characters著作权归领扣网络所有.商业转载请联系官方授权,非商业转载请注明出处. 这道题目一拿到手,想都不用想,直接暴力遍历.然而结果虽然可行,…

July 16, 2015 Problem statement: Longest Substring Without Repeating Characters Read the blog: http://blog.csdn.net/fightforyourdream/article/details/17860983 这算法写了很多次, 时间太长, 半年前, 有一次写了二个小时, 写不下去, 想法不好, 没有办法收场; 接着, 又写了四天, 每天二小时, 把上次代码拿出来看, 有什么问题, 改写.…

Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest subst…

Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest subst…

Given a string, find the length of the longest substring without repeating characters. Examples Given "abcabcbb", the answer is "abc", which the length is 3. Given "bbbbb", the answer is "b", with the length of 1. G…

要开学了,不开森.键盘声音有点大,担心会吵到舍友.今年要当个可爱的技术宅呀~ 题目:Given a string, find the length of the longest substring without repeating characters. Examples:  Given "abcabcbb", the answer is "abc", which the length is 3. 第一反应的解法,直接贴代码吧,38ms的运行时间,击败58%. c…

Longest Substring Without Repeating Characters Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the lengt…