I just saw the following code among the successful submissions at codechef.

http://www.codechef.com/viewplaintext/1595846

I used to think that

float max(int n,int arr[n][n])
{....}

is not allowed in C++ (as 'n' is a variable). My CodeBlocks (on windows) with MinGW [gcc 4.4] gives compile time error. that "error: array bound is not an integer constant.

Then how can be such a solution be accepted by CodeChef's judge. Is there any special flag that allows us to do that in C++???

EDIT: A link showing status as AC (accepted) : http://www.codechef.com/viewsolution/1595846