Compilare: user.cpp: In function 'void up(long int, long int)': user.cpp:24: warning: unused variable 'ps' user.cpp: In function 'void cut(long int&)': user.cpp:67: warning: unused variable 'con' user.cpp: In function 'int main()': user.cpp:106: warning: comparison between signed and unsigned integer expressions user.cpp:101: warning: 'gg' may be used uninitialized in this function