Compilare: main.cpp: In function 'void solve()': main.cpp:152:35: warning: unused variable 'last' [-Wunused-variable] ll st = 1,dr = 2000000000,mij,last,i,j,f; ^~~~ main.cpp: In function 'long long int Check(long long int)': main.cpp:86:28: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] ll k = 0,i,y,x,val,j,z,poz; ^~~