An encoded string S is given.  To find and write the decoded string to a tape, the encoded string is read one character at a time and the following steps are taken: If the character read is a letter, that letter is written onto the tape. If the chara…

[LeetCode]880. Decoded String at Index 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/decoded-string-at-index/description/ 题目描述: An encoded string S is given. To find and wri…

An encoded string S is given.  To find and write the decodedstring to a tape, the encoded string is read one character at a time and the following steps are taken: If the character read is a letter, that letter is written onto the tape. If the charac…

2018-10-04 12:53:06 问题描述: 问题求解: 首先本题给出了问题的规模,从Note中我们可以看到解码后的字符串长度甚至可以达到2^63的长度,这个长度已经远远超过整型数的范围,因此如果只是先解码后提取的话无疑是会超时的. 那么本题还有什么别的思路呢?正常来说如果碰到这种重复循环的问题,首先想到的自然是取余操作,比如hahahaha,K = 5,其实和 (K % 2 = 1)是一样的,因此本题的解法就很明确了,就是每次对K进行取余操作,如果说碰到了K == size的情况,也就是…

题目: You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be represented by empty parenthesis pair "()". And you need to omit all the empty parenthesis pai…

Given an encoded string, return it's decoded string. The encoding rule is: k[encoded_string], where the encoded_string inside the square brackets is being repeated exactly k times. Note that k is guaranteed to be a positive integer. You may assume th…

Given an encoded string, return it's decoded string. The encoding rule is: k[encoded_string], where the encoded_string inside the square brackets is being repeated exactly k times. Note that k is guaranteed to be a positive integer. You may assume th…

在 ASP.NET Core 中通过 Request.Host.Host 获取主机名(hostname)时,如果主机名中包含非 ASCII 字符(比如 puny code),就会引发下面的异常: System.ArgumentException : Decoded string is not a valid IDN name. (Parameter 'ascii') Stack Trace: at System.Globalization.IdnMapping.ThrowForZeroLengt…

Given an encoded string, return it's decoded string. The encoding rule is: k[encoded_string], where the encoded_string inside the square brackets is being repeated exactly k times. Note that k is guaranteed to be a positive integer. You may assume th…

Leetcode 8. String to Integer (atoi) atoi函数实现 (字符串) 题目描述 实现atoi函数,将一个字符串转化为数字 测试样例 Input: "42" Output: 42 Input: " -42" Output: -42 Input: "4193 with words" Output: 4193 Input: "words and 987" Output: 0 详细分析 这道题的cor…