Special binary strings are binary strings with the following two properties: The number of 0's is equal to the number of 1's. Every prefix of the binary string has at least as many 1's as 0's. Given a special string S, a move consists of choosing two…
Special binary strings are binary strings with the following two properties: The number of 0's is equal to the number of 1's. Every prefix of the binary string has at least as many 1's as 0's. Given a special string S, a move consists of choosing two…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址: https://leetcode.com/problems/special-binary-string/description/ 题目描述: Special binary strings are binary strings with the following two properties: The number of 0's is equal to the number…
761. Special Binary String 题意: 一个符合以下两个要求的二进制串: \(1.串中包含的1和0的个数是相等的.\) \(2.二进制串的所有前缀中1的个数不少于0的个数\) 被称为特殊二进制串 要求我们任意交换两个相邻的特殊二进制串(可以交换任意次)使得最终得到的序列的字典序最大,并且满足是特殊二进制串. 思路: 我们可以将1看作是上升,0是下降,那么可以这样 然后我们可以找最外层符合要求的子串也就是最底部从水平线开始又降到水平线的段,可以发现找这样的串只要统计一个cnt…
Special binary strings are binary strings with the following two properties: The number of 0's is equal to the number of 1's. Every prefix of the binary string has at least as many 1's as 0's. Given a special string S, a move consists of choosing two…
https://leetcode.com/problems/binary-string-with-substrings-representing-1-to-n/ Given a binary string S (a string consisting only of '0' and '1's) and a positive integer N, return true if and only if for every integer X from 1 to N, the binary repre…
Design and implement a data structure for a compressed string iterator. It should support the following operations: next and hasNext. The given compressed string will be in the form of each letter followed by a positive integer representing the numbe…
S and T are strings composed of lowercase letters. In S, no letter occurs more than once. S was sorted in some custom order previously. We want to permute the characters of T so that they match the order that S was sorted. More specifically, if x occ…
Given s1, s2, s3, find whether s3 is formed by the interleaving of s1and s2. Example 1: Input: s1 = "aabcc", s2 = "dbbca", s3 = "aadbbcbcac" Output: true Example 2: Input: s1 = "aabcc", s2 = "dbbca", s3 =…
Given two strings S and T, return if they are equal when both are typed into empty text editors. # means a backspace character. Example 1: Input: S = "ab#c", T = "ad#c" Output: true Explanation: Both S and T become "ac". Exam…