Compilare: main.cpp: In function 'int nrdiv(int)': main.cpp:7:24: warning: unused variable 'copie' [-Wunused-variable] int d=2,nr=0,sol=0,copie=a; ^~~~~ main.cpp: In function 'int main()': main.cpp:46:14: warning: 'nr' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<nr<<' '<<max1<<' '<<nrrep; ^~~ main.cpp:46:35: warning: 'nrrep' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<nr<<' '<<max1<<' '<<nrrep; ^