MATLAB: Given the three strings \'GR PXE\',\'NTEMEH\' and \'ISLA T\', the string

Question

MATLAB: Given the three strings 'GR PXE','NTEMEH' and 'ISLA T', the string created by braiding the strings together will be 'GNIRTS ELPMAXE EHT'. Continuing with this example, your final output string would read: 'THE EXAMPLE STRING'

Input is three seperate strings, output is one large decoded string. Below is the code I have so far in Matlab, I'm stuck with where to go from here:

function [ newString ] = braid( string3, string2, string1 )
%braid: Decode seperate strings into a message
% Detailed explanation goes here
N = 3.*(length(string1));
vec1 = 1:3:N;
vec2 = 2:3:N;
vec3 = 3:3:N;
string1 = fliplr(string1);
string2 = fliplr(string2);
string3 = fliplr(string3);

end

Also, for reference, below is an example of an input and the proper output:

Test Cases:

[decoded1] = braid(' eo teou', ' lre vso', 'mbphdl y')

decoded1 => you solved the problem

Explanation / Answer

Given below is the completed function braid(). Please save the below code in a file named braid.m and then test it at command prompt. Hope the answer helps. If it did, please don't forget to rate the answer . Thank you very much.

function [ newString ] = braid( string3, string2, string1)
% braid: Decode seperate strings into a message
% Detailed explanation goes here

n1 = length(string1); %length of each of the input strings
n2 = 3 * n1; % the length of new string
newString(1:n2) = ' '; %initialize the newString to contain all blanks
idx1 = 1; %index into each of input strings
idx2 = 1; %index into newString
while idx1 <= n1
newString(idx2) = string3(idx1);
newString(idx2 + 1) = string2(idx1);
newString(idx2 + 2) = string1(idx1);
idx1 = idx1 + 1; %increment to next character from input strings
idx2 = idx2 + 3; %increment to next position to fill in newString
end

newString = fliplr(newString); % reverse the string

end

=====================

output

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