Diffing "mg5a" and "mg5b"

Title: mg5a mg5b
Author: Antony Pearson Antony Pearson
Submitted: 2003-11-05 15:19:22 UTC 2003-11-05 15:21:26 UTC
Status: Failed Failed
Score: 0.0 0.0
Result: [] []
CPU Time: 0.0 0.0
Code:
m=size(a,1);
n=size(a,2);
b=0;
for i=1:m
for j=1:n
for k=1:m-i+1
for l=1:j-j+1
c=a(k:k+i-1,l:l+j-1);
if all(c==c(1))
    s=sum(sum(c));
    b=max(s,b);
end
end
end
end
end