Compilare: user.cpp: In function ‘int Do(int, int, int, int)’: user.cpp:37: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:44: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:50: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:35: warning: ‘x’ may be used uninitialized in this function user.cpp:35: warning: ‘y’ may be used uninitialized in this function user.cpp:35: warning: ‘z’ may be used uninitialized in this function