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 ...
Give a strings, count the number of non empty contiguous substrings that have the same number of s and s, and all the s and all the s in these substrings are grouped consecutively. Substrings that oc ...
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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 ...
Let's define a function `countUniqueChars(s)` that returns the number of unique characters on `s`, for example if `s = "LEETCODE"` then `"L"`, `"T ...
Given a string, your task is to count how many palindromic substrings in this string. The substrings with different start indexes or end indexes ...
Consider the string s to be the infinite wraparound string of "abcdefghi ...
A binary watch has 4 LEDs on the top which represent the hours (0-11), and the 6 LEDs on the bottom represent the minutes ...
https://www.cnblogs.com/chenyanbin/p/10193811.html 最近公司要做一個操作日志的模塊,如果將操作日志以字符串的形式存到后台數據庫,非常浪費內存,不可取,特意寫了字符串與二進制相互轉換的函數。 1、字符串轉二進制 ...
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