Compilare: user.cpp: In function 'int main()': user.cpp:57: warning: comparison between signed and unsigned integer expressions user.cpp:69: warning: comparison between signed and unsigned integer expressions user.cpp:24: warning: 'x' may be used uninitialized in this function user.cpp:24: note: 'x' was declared here user.cpp:24: warning: 'y' may be used uninitialized in this function user.cpp:24: note: 'y' was declared here user.cpp:24: warning: 'x' may be used uninitialized in this function user.cpp:24: note: 'x' was declared here user.cpp:24: warning: 'y' may be used uninitialized in this function user.cpp:24: note: 'y' was declared here