MATLAB: Integers without repeating consecutively

Question

A pincode consists of N integers between 1 and 9. In a valid pincode, no integer is allowed to repeat consecutively. For example, 1, 4, 5, 5, 6, 7 is invalid because 5 occurs twice. I tested the example but it does not outputs what the example shows. Any suggestions.

Answer 1

Hi Jose,

Check if the following code works for you:-

function [repPos, pinCodeFix] = pinCodeCheck(pinCode)
repPos = [];
pinCodeFix = [pinCode(1)];
for i=2:length(pinCode)
    if pinCode(i-1) == pinCode(i)
        repPos = [repPos i];
    else
        pinCodeFix = [pinCodeFix pinCode(i)];
    end
end
end

Produces the output as:-

repPos =
     3     5
pinCodeFix =
     2     9     5     3