README_EN.md

43. Multiply Strings

中文文档

Description

Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string.

Example 1:

Input: num1 = "2", num2 = "3"

Output: "6"

Example 2:

Input: num1 = "123", num2 = "456"

Output: "56088"

Note:

<li>The length of both <code>num1</code> and <code>num2</code> is &lt; 110.</li>

<li>Both <code>num1</code> and <code>num2</code> contain&nbsp;only digits <code>0-9</code>.</li>

<li>Both <code>num1</code> and <code>num2</code>&nbsp;do not contain any leading zero, except the number 0 itself.</li>

<li>You <strong>must not use any built-in BigInteger library</strong> or <strong>convert the inputs to integer</strong> directly.</li>

Solutions

Python3

Java

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