Eroare de compilare: user.c:6:2: error: unknown type name ‘N’ N *f[26]; ^ user.c:7:1: warning: useless storage class specifier in empty declaration [enabled by default] }; ^ user.c:9:1: error: unknown type name ‘N’ N *t; ^ user.c:10:8: error: unknown type name ‘N’ void A(N *s,char *l) { ^ user.c:19:7: error: unknown type name ‘N’ int D(N *s,char *l) { ^ user.c:30:7: error: unknown type name ‘N’ int C(N *s,char *l) { ^ user.c:37:7: error: unknown type name ‘N’ int E(N *s,char *l,int k) { return (*l=='\n'||!s->f[*l-'a'])?k:E(s->f[*l-'a'],l+1,k+1); } ^ user.c: In function ‘main’: user.c:40:5: error: ‘N’ undeclared (first use in this function) t=(N*)malloc(sizeof(N)); ^ user.c:40:5: note: each undeclared identifier is reported only once for each function it appears in user.c:40:7: error: expected expression before ‘)’ token t=(N*)malloc(sizeof(N)); ^ user.c:41:3: error: request for member ‘c’ in something not a structure or union t->c=t->n=0,memset(t->f,0,sizeof(t->f)); ^ user.c:41:8: error: request for member ‘n’ in something not a structure or union t->c=t->n=0,memset(t->f,0,sizeof(t->f)); ^ user.c:41:22: error: request for member ‘f’ in something not a structure or union t->c=t->n=0,memset(t->f,0,sizeof(t->f)); ^ user.c:41:36: error: request for member ‘f’ in something not a structure or union t->c=t->n=0,memset(t->f,0,sizeof(t->f)); ^ user.c:41:13: warning: left-hand operand of comma expression has no effect [-Wunused-value] t->c=t->n=0,memset(t->f,0,sizeof(t->f)); ^ user.c:45:10: warning: implicit declaration of function ‘A’ [-Wimplicit-function-declaration] A(t,l+2); ^ user.c:47:13: warning: implicit declaration of function ‘D’ [-Wimplicit-function-declaration] D(t,l+2); ^