Questions tagged [bigint]

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converting from byte arrays to strings of integers, and back

I have this code to go from an array of bytes (arbitrarily long) to a "bigint" string (really, an arbitrarily long string composed of integers 0-9), and go from that long integer string into ...
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1answer
53 views

(FOLLOW-UP) Header-only bigint library written in c++20

This question is a follow up of Header only bigint library written in c++20. I've made all (or almost all) the corrections suggested in the answers, plus some minor change here and there and a ...
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2answers
217 views

Header only bigint library written in c++20

I made this over the course of a week and a half, to use it for some Project Euler problems. My goal was to make something relatively efficient that could be used as easily as a builtin type. I also ...
1
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1answer
175 views

Follow-up: How can we optimizing Java BigInteger operations?

This is the follow up question of How can we optimizing Java BigInteger operations? Problem Reduce the number to 1 in a minimal number of steps, following the rules: ...
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3answers
272 views

How can we optimizing Java BigInteger operations?

Problem Reduce the number to 1 in a minimal number of steps, following the rules: If the number is even, divide it by 2. Otherwise, increment or decrement it by 1. Limit: ...
3
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1answer
187 views

A BigInteger class

I made this project to practice object-oriented programming. I have implemented operator+ and operator+=. The rationale behind <...
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1answer
59 views

Criticism on x86_64 nasm printBigInt and bigPow implementation

The first "method" I have coded is _bigPow which can pow(x, y) on any number which is really big. And the _printBigInt prints a very big integer. Plus I have tried to comment most parts of ...
4
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2answers
100 views

SPOJ - ADDREV (Adding Reversed Numbers)

https://www.spoj.com/problems/ADDREV/ My answer to ADDREV challenge on SPOJ (link to the problem given above), written in JAVA, was accepted. However, the timing was 1.23 and memory used was 82M, ...
15
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4answers
7k views

BigInt class in C++

I made a BigInt class that supports almost all functions an int would. The code seems too bulky and there might be a few bugs lurking here and there. I would like ...