Package g0001_0100.s0043_multiply_strings

Class Solution

java.lang.Object

g0001_0100.s0043_multiply_strings.Solution

public class Solution
extends Object

43 - Multiply Strings.<p>Medium</p> <p>Given two non-negative integers <code>num1</code> and <code>num2</code> represented as strings, return the product of <code>num1</code> and <code>num2</code>, also represented as a string.</p> <p><strong>Note:</strong> You must not use any built-in BigInteger library or convert the inputs to integer directly.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> num1 = &ldquo;2&rdquo;, num2 = &ldquo;3&rdquo;</p> <p><strong>Output:</strong> &ldquo;6&rdquo;</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> num1 = &ldquo;123&rdquo;, num2 = &ldquo;456&rdquo;</p> <p><strong>Output:</strong> &ldquo;56088&rdquo;</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= num1.length, num2.length <= 200</code></li> <li><code>num1</code> and <code>num2</code> consist of digits only.</li> <li>Both <code>num1</code> and <code>num2</code> do not contain any leading zero, except the number <code>0</code> itself.</li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
String	multiply(String num1, String num2)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

multiply

public String multiply(String num1,
 String num2)