Eroare de compilare in evaluator: user.c:6: error: expected specifier-qualifier-list before 'nod' user.c:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token user.c: In function 'add': user.c:13: error: 'nod' undeclared (first use in this function) user.c:13: error: (Each undeclared identifier is reported only once user.c:13: error: for each function it appears in.) user.c:13: error: 'Nod' undeclared (first use in this function) user.c:14: error: expected expression before ')' token user.c:19: error: 'head' undeclared (first use in this function) user.c: At top level: user.c:24: error: conflicting types for 'remove' /usr/include/stdio.h:152: error: previous declaration of 'remove' was here user.c: In function 'remove': user.c:25: error: 'nod' undeclared (first use in this function) user.c:25: error: 'aux' undeclared (first use in this function) user.c:26: error: 'tail' undeclared (first use in this function) user.c: In function 'main': user.c:36: error: 'pereche' undeclared (first use in this function) user.c:36: error: expected ';' before 'poz' user.c:56: error: 'head' undeclared (first use in this function) user.c:56: error: 'nod' undeclared (first use in this function) user.c:56: error: expected expression before ')' token user.c:57: error: 'tail' undeclared (first use in this function) user.c:57: error: expected expression before ')' token user.c:64: error: 'poz' undeclared (first use in this function)