ref: c40d57b389033a42ad526308884e49b39746ecf5
dir: /lib/vimfiles/macros/maze/mazeansi.c/
char*M,A,Z,E=40,J[80],T[3];main(C){for(M=J+E,*J=A=scanf("%d",& C) ;-- E;J [E ]=M [E ]= E) printf("._"); for(;(A-=Z=!Z) || (printf("\n|" ) , A = 39 ,C -- ) ; Z || printf (T ))T[Z]=Z[A-(E =A[J-Z])&&!C & A == M[ A] |6<<27<rand()||!C&!Z?J[M[E]=M[A]]=E,J[M[A]=A-Z]=A,"_.":" |"];}