Compilare: user.cpp:130:2: warning: no newline at end of file user.cpp: In function 'void APM()': user.cpp:17: warning: unused variable 'j' user.cpp: In function 'void DF(int)': user.cpp:50: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void act()': user.cpp:68: warning: comparison between signed and unsigned integer expressions user.cpp:72: warning: comparison between signed and unsigned integer expressions user.cpp:86: warning: comparison between signed and unsigned integer expressions user.cpp:91: warning: comparison between signed and unsigned integer expressions