Got seg fault (gcc 15.2.0 on nixos 26.05) when writing to
M[Z] = ... char fmt[] = "%d"; scanf(M=fmt,&C);
char*M,A,Z,E=40,J[40],T[40];main(C){char fmt[]="%d";for(*J=A=scanf(M=fmt,&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,"_.":" |"];}