Compilare: main.cpp: In function 'int main()': main.cpp:12:30: warning: unused variable 'nrm' [-Wunused-variable] unsigned long long n=0,k,nrm=0,i,j; ^~~ main.cpp:12:36: warning: unused variable 'i' [-Wunused-variable] unsigned long long n=0,k,nrm=0,i,j; ^ main.cpp:12:38: warning: unused variable 'j' [-Wunused-variable] unsigned long long n=0,k,nrm=0,i,j; ^