Compilare: user.cpp: In function ‘int prim(int, int)’: user.cpp:24:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int cmmdc(int, int)’: user.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp:34:17: warning: ‘cmmdc’ may be used uninitialized in this function [-Wmaybe-uninitialized] out << cmmdc; ^