Here is the program

Here is the program in its final layout:

char*M,A,Z,E=40,J[40],T[40];main(C){for(*J=A=scanf(M=”%d”,&C);
— E; J[ E] =T
[E ]= E) printf(“._”); for(;(A-=Z=!Z) || (printf(“\n|”
) , A = 39 ,C —
) ; Z || printf (M ))M[Z]=Z[A-(E =A[J-Z])&&!C
& A == T[ A]
|6<<27<rand()||!C&!Z?J[T[E]=T[A]]=E,J[T[A]=A-Z]=A,”_.”:” |”];}

Note how the two decrement operators suggest an entry and exit to the maze!

Obfuscated C. Great!