X

DAYS

:

HOUR

:

MINS

:

SEC

Copied to Clipboard
Multiply two strings
Medium Accuracy: 26.16% Submissions: 85962 Points: 4

Given two numbers as strings s1 and s2. Calculate their Product.
Note: The numbers can be negative.


Example 1:

Input:
s1 = "33"
s2 = "2"
Output:
66

Example 2:

Input:
s1 = "11"
s2 = "23"
Output:
253


Your Task:

You don't need to read input or print anything. Your task is to complete the function multiplyStrings() which takes two strings s1 and s2 as input and returns their product as a string.

Note : You are not allowed to use any built-in function or convert the strings to integer
.


Expected Time Complexity: O(n1* n2)
Expected Auxiliary Space: O(n+ n2) ; where n1 and n2 are sizes of strings s1 and s2 respectively.


Constraints:
1 ≤ length of s1 and s2 ≤ 103

We are replacing the old Disqus forum with the new Discussions section given below.
Click here to view old Disqus comments.


to report an issue on this page.

Editorial

We strongly recommend solving this problem on your own before viewing its editorial. Do you still want to view the editorial?

Yes

All Submissions

My Submissions:

Login to access your submissions.

Multiply two strings

Output Window