Compilare: user.cpp: In function ‘int main()’: user.cpp:9:42: warning: unused variable ‘y’ [-Wunused-variable] int i, n, a, s=0, smax=0, x=1, xmax, y, ymax; ^ user.cpp:19:33: warning: ‘ymax’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<smax<<' '<<xmax<<' '<<ymax<<'\n'; ^ user.cpp:19:22: warning: ‘xmax’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<smax<<' '<<xmax<<' '<<ymax<<'\n'; ^