Package g0001_0100.s0043_multiply_strings

Class Solution

java.lang.Object
g0001_0100.s0043_multiply_strings.Solution
public class Solution extends java.lang.Object
43 - Multiply Strings.

Medium

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

Note: You must not use any built-in BigInteger library or convert the inputs to integer directly.

Example 1:

Input: num1 = “2”, num2 = “3”

Output: “6”

Example 2:

Input: num1 = “123”, num2 = “456”

Output: “56088”

Constraints:

  • 1 <= num1.length, num2.length <= 200
  • num1 and num2 consist of digits only.
  • Both num1 and num2 do not contain any leading zero, except the number 0 itself.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

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