Compilare: user.cpp: In function ‘int main()’: user.cpp:12:13: warning: unused variable ‘y’ [-Wunused-variable] int n,x,y,st,en; ^ user.cpp:35:48: warning: ‘en’ may be used uninitialized in this function [-Wmaybe-uninitialized] out << bestSum << " " << st+1 << " " << en+1; ^ user.cpp:35:33: warning: ‘st’ may be used uninitialized in this function [-Wmaybe-uninitialized] out << bestSum << " " << st+1 << " " << en+1; ^