Compilare: main.cpp: In function 'int main()': main.cpp:13:15: warning: unused variable 'a' [-Wunused-variable] int n,x,l,a,b; ^ main.cpp:13:17: warning: unused variable 'b' [-Wunused-variable] int n,x,l,a,b; ^ main.cpp:33:20: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<poz<<" "<<pasi<<"\n"; ^~~