Compilare: user.cpp: In function ‘int cmmmc(int, int)’: user.cpp:19:9: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] int c; ^ user.cpp:21:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:56:11: warning: unused variable ‘nr’ [-Wunused-variable] int i,nr=1; ^