Compilare: user.cpp: In function ‘int main()’: user.cpp:9:18: warning: unused variable ‘nr2’ [-Wunused-variable] {int n,i,k=0,nr1,nr2,nr3,s1,aux,c=0; ^ user.cpp:9:26: warning: unused variable ‘s1’ [-Wunused-variable] {int n,i,k=0,nr1,nr2,nr3,s1,aux,c=0; ^ user.cpp:56:12: warning: ‘nr3’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i=n;i>n-nr3;i--) ^ user.cpp:9:14: warning: ‘nr1’ may be used uninitialized in this function [-Wmaybe-uninitialized] {int n,i,k=0,nr1,nr2,nr3,s1,aux,c=0; ^