Compilare: user.cpp: In function ‘void Solve()’: user.cpp:58:26: warning: unused variable ‘zs’ [-Wunused-variable] int pos, zs,is,js; ^ user.cpp:58:29: warning: unused variable ‘is’ [-Wunused-variable] int pos, zs,is,js; ^ user.cpp:58:32: warning: unused variable ‘js’ [-Wunused-variable] int pos, zs,is,js; ^ user.cpp:79:36: warning: ‘pos’ may be used uninitialized in this function [-Wmaybe-uninitialized] sol[Pos(z,i,j)]=pos; ^