You are given a stringsand an integerk, akduplicate removalconsists of choosingkadjacent and equal letters fromsand removing them, causing the left and the right side of the deleted substring to conc ...
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Given a string S of lowercase letters, a duplicate removal consists of choosing two adjacent and equal letters, and removing them. We repeatedly ...
In a string composed of 'L', 'R', and 'X' characters, like "RXXLRXRXL", a move consists of either replacing one occurrence of "XL" with "LX ...
Given a string s and a non-empty string p, find all the start indices of p's anagrams in s. Strings consists of lowercase English letters only ...
Given a string and an integer k, you need to reverse the first k characters for every 2k characters counting from the start of the string ...
1: Example 2: 和之前那道 Remove Duplicates from Sorted L ...
这是小川的第389次更新，第419篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第251题（顺位题号是1047）。给定一个小写字母的字符串S，重复删除两个相邻且相等的字母。 我们在S上反复删除，直到我们再也无法删除。 在完成所有此类重复删除后返回最后一个字符串 ...
Given an input string , reverse the string word by word. Example: Note: A word is defined as a sequence of non-space characters. ...
Find all the elements that appear twice in this array ...
