Divide two BIG numbers in string format , simple method.

Question

0.00/5 (No votes)

See more:

Hi everyone, I need a method for divide two big numbers in string,( console app. and in c++ )
for example :
string s1 = "4234823759252523523502525234232"...( about 100 char numbers )"
string s2 = "243423423423"...also like above"

string Result = Divide(s1,s2);

Thank you.

Posted 8-Apr-13 10:18am

Ali Zandian

Add a Solution

Comments

joshrduncan2012 8-Apr-13 16:26pm

Great thing to ask google. Not a question, btw.

[no name] 10-Apr-13 6:09am

yes, but my problem didn't solve there(Google). :D

Matt T Heffron 8-Apr-13 16:44pm

How would you do it if you wrote the numbers out on paper and did the "long division"?
Well, that's what you need to code.
Give that a try and if you have specific problems with the implementation, then ask for help here.

[no name] 10-Apr-13 6:07am

i did those things and i coded this method, actually i programmed a console app. that has 4 methods ; sum minus multiply divide for BIG numbers in string format and the main method, i felt something went wrong when i saw the whole program has 400 linen, is that too much or ....
thank you anyway for answering, Matt T Heffron

Matt T Heffron 10-Apr-13 13:00pm

Congratulations!
400 lines does not seem like a seriously excessive length.
An experienced programmer could probably trim off a bit.

[no name] 10-Apr-13 14:49pm

thank you. I'll do my best to trim it off a bit more :)

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sergey Alexandrovich Kryukov · Answer 1 · 2013-04-08T10:35:00

This is a well-known problem related to some class which is usually called "BigInteger" or "BigInt".

These are some of the implementations:
http://sourceforge.net/projects/cpp-bigint/[^],
https://mattmccutchen.net/bigint/[^],
https://github.com/technophilis/BigIntegerCPP[^].

You can try to find some more: http://lmgtfy.com/?q=C%2B%2B+(BigInteger+OR+BigInt)[^].

—SA