Eroare de compilare: user.c:6:2: error: unknown type name ‘M’ M *l[26],*x; ^ user.c: In function ‘V’: user.c:12:41: error: expected ‘)’ before numeric constant N *r=(N*)malloc(sizeof(N)),memset(r,0,sizeof(N)),memset(r->l,0,26); ^ user.c: In function ‘A’: user.c:21:2: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!r->l[*k]) ^ user.c:22:7: warning: array subscript has type ‘char’ [-Wchar-subscripts] r->l[*k]=V(); ^ user.c:22:15: warning: assignment from incompatible pointer type [enabled by default] r->l[*k]=V(); ^ user.c:23:2: warning: array subscript has type ‘char’ [-Wchar-subscripts] A(r->l[*k++]); ^ user.c:23:2: warning: passing argument 1 of ‘A’ from incompatible pointer type [enabled by default] user.c:15:6: note: expected ‘struct N *’ but argument is of type ‘int *’ void A(N *r) { ^ user.c: In function ‘main’: user.c:29:10: warning: assignment from incompatible pointer type [enabled by default] for(r->x=c[u++]=r;p<u;) ^ user.c:32:14: warning: assignment from incompatible pointer type [enabled by default] for(s=t->x;s!=r&&!s->l[i];s=s->x); ^ user.c:32:36: warning: assignment from incompatible pointer type [enabled by default] for(s=t->x;s!=r&&!s->l[i];s=s->x); ^ user.c:33:16: error: request for member ‘x’ in something not a structure or union t->l[i]->x=(s->l[i]&&s->l[i]!=t->l[i]?s->l[i]:r),c[u++]=t->l[i]; ^ user.c:33:54: warning: pointer type mismatch in conditional expression [enabled by default] t->l[i]->x=(s->l[i]&&s->l[i]!=t->l[i]?s->l[i]:r),c[u++]=t->l[i]; ^ user.c:33:64: warning: assignment from incompatible pointer type [enabled by default] t->l[i]->x=(s->l[i]&&s->l[i]!=t->l[i]?s->l[i]:r),c[u++]=t->l[i]; ^ user.c:33:57: warning: left-hand operand of comma expression has no effect [-Wunused-value] t->l[i]->x=(s->l[i]&&s->l[i]!=t->l[i]?s->l[i]:r),c[u++]=t->l[i]; ^ user.c:36:31: warning: assignment from incompatible pointer type [enabled by default] for(;!q->l[e[i]-'a']&&q!=r;q=q->x); ^ user.c:37:35: warning: pointer type mismatch in conditional expression [enabled by default]