arce.cpp: In function `int main()': arce.cpp:12: `Citire' undeclared (first use this function) arce.cpp:12: (Each undeclared identifier is reported only once for each function it appears in.) arce.cpp:13: `Afisare' undeclared (first use this function) arce.cpp: In function `void Citire()': arce.cpp:18: `void Citire()' used prior to declaration arce.cpp:23: `x' undeclared (first use this function) arce.cpp:23: `y' undeclared (first use this function) arce.cpp:26: `gr' undeclared (first use this function)