Compilare: user.cpp: In function ‘int main()’: user.cpp:134:32: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] i--,j--,x++,y++; ^ user.cpp:134:32: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:134:32: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:134:32: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:57:32: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] i--,j--,x++,y++; ^ user.cpp:57:32: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:57:32: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:57:32: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized]