Borderou de evaluare (job #472767)

Compilare: user.cpp: In function ‘int main()’: user.cpp:8:15: warning: unused variable ‘y’ [-Wunused-variable] user.cpp:29:51: warning: ‘xf’ may be used uninitialized in this function [-Wuninitialized] user.cpp:29:24: warning: ‘culf’ may be used uninitialized in this function [-Wuninitialized] user.cpp:29:40: warning: ‘iff’ may be used uninitialized in this function [-Wuninitialized]