Compilare: user.cpp: In function ‘long int caut1(long int, long int, long int)’: user.cpp:69: warning: control reaches end of non-void function user.cpp: In function ‘long int caut2(long int, long int, long int)’: user.cpp:52: warning: control reaches end of non-void function user.cpp: In function ‘long int caut3(long int, long int, long int)’: user.cpp:31: warning: control reaches end of non-void function