Four digit number ABCD reversal - MATLAB Cody - MATLAB Central

Problem 45497. Four digit number ABCD reversal

Created by Prasad Reddy
Appears in Cody Problems in Japanese

Difficulty:Rate

Solve Later
Add To GroupÃ‚

write a MATLAB function to find the four-digit number ABCD when multiplied by 4 returns DCBA. The function takes an input x=4.

Solve

Solution Stats

71 Solutions
46 Solvers

Last Solution submitted on Dec 19, 2024

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

Michael on 7 May 2020

You really shouldn't give away the answer in the test suite. ;-)

You could change the test suite to something like:

assert (str2num(fliplr(num2str(y))) == y*4);

Although this also sort of gives away one possible solution.

Solution Comments

Show comments

Problem Recent Solvers46

Suggested Problems

Making change

3413 Solvers
Find the peak 3n+1 sequence value

2526 Solvers
Balanced number

3030 Solvers
Is the Point in a Circle?

616 Solvers
Change the sign of even index entries of the reversed vector

574 Solvers

More from this Author2

Ordered pairs of integers (I, J).

38 Solvers
Number of o rderd pairs of integers (I,J) that can be formed.

33 Solvers

Problem Tags

Community Treasure Hunt

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

Start Hunting!