Compilare: user.cpp: In function ‘int main()’: user.cpp:23:27: warning: ‘ul’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<smax<<' '<<pr<<' '<<ul<<'\n'; ^ user.cpp:23:18: warning: ‘pr’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<smax<<' '<<pr<<' '<<ul<<'\n'; ^ user.cpp:13:20: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] int pr, ul, x, y, sum=N0, smax=N0; ^