Compilare: user.cpp:104:2: warning: no newline at end of file user.cpp: In function 'void df(int)': user.cpp:19: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void calc(int)': user.cpp:35: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void act(int, int)': user.cpp:46: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:98: warning: 'cmax' may be used uninitialized in this function