Eroare de compilare: user.c: In function ‘main’: user.c:7:5: error: unknown type name ‘bool’ bool rez=true; ^ user.c:7:14: error: ‘true’ undeclared (first use in this function) bool rez=true; ^ user.c:7:14: note: each undeclared identifier is reported only once for each function it appears in user.c:25:55: error: ‘false’ undeclared (first use in this function) if((k!=2)&&(k!=3)&&(k!=5)&&(k!=7)){rez=false;} ^