Compilare: user.cpp: In function ‘int main()’: user.cpp:24:12: warning: unused variable ‘m’ [-Wunused-variable] int n, m, ii, xs, ys, sol; ^ user.cpp:57:12: warning: array subscript is below array bounds [-Warray-bounds] v[sol-1].l = xs; ^ user.cpp:58:12: warning: array subscript is below array bounds [-Warray-bounds] v[sol-1].c = ys; ^ user.cpp:67:28: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] v[ i-1 ].c = ys = y; ^ user.cpp:66:28: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] v[ i-1 ].l = xs = x; ^