摘要：C语言是自对齐的，32位以4字节对齐，64位以8字节对齐（1字节=8 bits)自对齐的好处：在一条指令内完成数据的取或者存的操作，使得内存访问更快；否则，如果一个变量跨机器字存储，那么要做两次或更多次的访问（先取存在前一个机器字的内容，再取存在后一个机器字的内容）。对齐要求：字符可以起始于任何字节... 阅读全文

摘要：Given two numbers represented as strings, return multiplication of the numbers as a string. Note: The numbers can be arbitrarily large and are non-neg 阅读全文

摘要：Given two binary strings, return their sum (also a binary string).For example,a = "11"b = "1"Return "100".class Solution {public: string addBinary(... 阅读全文

摘要：Given a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant digit is at... 阅读全文

摘要：Validate if a given string is numeric. Some examples:"0" => true" 0.1 " => true"abc" => false"1 a" => false"2e10" => trueNote: It is intended for the 阅读全文