Compilare: user.cpp: In function ‘int main()’: user.cpp:17:10: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(sc<0) ^ user.cpp:51:18: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<x<<" "<<y<<" "<<smax; ^ user.cpp:51:10: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<x<<" "<<y<<" "<<smax; ^