Compilare: user.cpp:57:23: warning: integer constant is too large for its type [enabled by default] if(st==dr) return INF; ^ user.cpp: In function ‘int compare_abs(const void*, const void*)’: user.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int compare_ord(const void*, const void*)’: user.cpp:47:1: warning: control reaches end of non-void function [-Wreturn-type] } ^