explain the working of this code ??

explai workig of this code.

C=0;

[m,n] = size(I);

for p=1:m

for q=1:n

if(I(p,q)==1)

C=C+1;

end

end

end

Answer 1

[Alex Sune]

It is an inefficient way to count the number of 1's in matrix I