Need help with the code.

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Manav Divekar
Manav Divekar 2021-11-12
回答： DGM 2021-11-12
i want to swaps characters of s as specified by the indices present in the pairs variable. pairs is a 2-column matrix, where on each row, i have given the positions of the two characters that need to swap. eg s = orange & pairs = [1 2]. out expected is roange. what changes you recommend in this code.
function [arr] = shuffletext ( pairs, s)
a = 0;
b = 0;
for i = 1:numel(s)
for j = pairs
s(i) = a;
a = b;
b = s(i);
end
end
arr = b;
Still its not showing any output just a blank if i call the function
using: disp( shuffletext( [1 2], 'orange') )
Output
>> disp( shuffletext( [1 2], 'orange') )
>>

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回答（1 个）

DGM
DGM 2021-11-12
Ran in:
Try this.
shuffletext2([1 2; 3 4; 5 6], 'orange')
ans = 'ronaeg'
function [intext] = shuffletext2(pairs,intext)
for p = 1:size(pairs,1)
intext(pairs(p,:)) = intext(fliplr(pairs(p,:)));
end
end

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