Compilare: main.cpp: In function 'int main()': main.cpp:13:21: warning: unused variable 'a' [-Wunused-variable] long long n,x,l,a,b; ^ main.cpp:13:23: warning: unused variable 'b' [-Wunused-variable] long long n,x,l,a,b; ^ main.cpp:35:25: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] for(long long i=poz+1;i<=n;i++) ^