Compilare: user.cpp:31:18: warning: multi-character character constant user.cpp:31:34: warning: multi-character character constant user.cpp: In function 'long int semn(long int, long int, char, char)': user.cpp:31: warning: comparison is always false due to limited range of data type user.cpp:31: warning: comparison is always false due to limited range of data type user.cpp: In function 'long int fct(long int, long int)': user.cpp:67: warning: control reaches end of non-void function