Compilare: main.cpp: In function 'int main()': main.cpp:7:26: warning: unused variable 'x' [-Wunused-variable] long long c,n,nr=0,i,x,k,o=0,cx,p,a=0,nrmax=0,b=1,cp; ^ main.cpp:7:30: warning: unused variable 'o' [-Wunused-variable] long long c,n,nr=0,i,x,k,o=0,cx,p,a=0,nrmax=0,b=1,cp; ^ main.cpp:7:34: warning: unused variable 'cx' [-Wunused-variable] long long c,n,nr=0,i,x,k,o=0,cx,p,a=0,nrmax=0,b=1,cp; ^~