Compilare: user.cpp: In function ‘int divide2()’: user.cpp:27: warning: comparison between signed and unsigned integer expressions user.cpp:43: warning: no return statement in function returning non-void user.cpp: In function ‘int main()’: user.cpp:54: warning: format ‘%s’ expects type ‘char*’, but argument 2 has type ‘char (*)[501]’ user.cpp:50: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:54: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result