carloscn / carloscn/structstudy

leetcode43:字符串相乘(multiply-strings)

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Lang-c/c++ Lang-rust Level-middle 一般问题 字符串 数学
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Description

### 问题描述

给定两个以字符串形式表示的非负整数 num1 和 num2,返回 num1 和 num2 的乘积,它们的乘积也表示为字符串形式。

注意:不能使用任何内置的 BigInteger 库或直接将输入转换为整数。

示例 1:

输入: num1 = "2", num2 = "3"
输出: "6"
示例 2:

输入: num1 = "123", num2 = "456"
输出: "56088"
 
提示:

1 <= num1.length, num2.length <= 200
num1 和 num2 只能由数字组成。
num1 和 num2 都不包含任何前导零,除了数字0本身。

来源:力扣(LeetCode)
链接:https://leetcode.cn/problems/multiply-strings

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