摘要： 题目描述： Given two binary strings, return their sum (also a binary string). For example, a = "11" b = "1" Return "100". 本题给我们两个字符串形式的二进制数，让我们计算相加之后的结果。 解 阅读全文

摘要： 题目描述： Given a non-negative integer represented as a non-empty array of digits, plus one to the integer. You may assume the integer do not contain any 阅读全文