Compilare: user.cpp: In function ‘int main()’: user.cpp:23:21: warning: unused variable ‘ok’ [-Wunused-variable] int T, a[100],i,ok=0,j; ^ user.cpp:23:26: warning: unused variable ‘j’ [-Wunused-variable] int T, a[100],i,ok=0,j; ^ user.cpp: In function ‘int cmmdc(int, int)’: user.cpp:20:1: warning: control reaches end of non-void function [-Wreturn-type] } ^