Problem 34. Binary numbers

Created by Cody Team

Solve Later

Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n-1. Each row of the matrix represents one binary number. For example, if n = 3, then your code could return

>> binary_numbers(3)

ans =

     1     1     1
     0     0     0
     0     1     1
     0     1     0
     0     0     1
     1     0     0
     1     1     0
     1     0     1

The order of the rows does not matter.

Solve

Solution Stats

11884 Solutions
4421 Solvers

Last Solution submitted on Oct 12, 2024

Last 200 Solutions

Problem Comments

11 Comments

11 Comments

Show 8 older comments

Jigar Gada on 10 Nov 2012

matlab functions should not be allowed. Let people think of the solution from scratch.

Jon on 18 Nov 2013

I actually use a function to do this in my project, but my original code scored 47.

MDK on 21 Oct 2014

I had all the test cases working properly except for n=10!
This is very weird!!

Gareth Lee on 10 Nov 2014

what's meaning?
when n = 3;
A = binary_numbers(n);
assert(all(A(:) == 0 | A(:) == 1))

Sanzhar Askaruly on 3 Jul 2019

fun!

Anton Casas on 25 Oct 2020

Very fun problem!

akihisa yorozu on 21 Aug 2021

More difficult than I expected!

Panggah Prabawa on 4 Jul 2022

There was a guy who solved this problem with around 11k code size. Absolute madlad.

Anudeep on 9 Nov 2022

Fun exercise!

Riya on 10 Nov 2022

difficult that I intended it to be.

Yacine on 5 Oct 2024 at 12:05

Wait until you see the guy who solved it with a +41k code size.

Solution Comments

Show comments

Problem Recent Solvers4421

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 34. Binary numbers

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers4421

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Problem 34. Binary numbers

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers4421

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Players