Compilare: user.cpp:44:2: warning: no newline at end of file user.cpp: In function 'void calc(int, int)': user.cpp:8: warning: comparison between signed and unsigned integer expressions user.cpp:8: warning: comparison between signed and unsigned integer expressions user.cpp:8: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:33: warning: comparison between signed and unsigned integer expressions user.cpp:34: warning: comparison between signed and unsigned integer expressions user.cpp:36: warning: comparison between signed and unsigned integer expressions user.cpp:37: warning: comparison between signed and unsigned integer expressions user.cpp:39: warning: comparison between signed and unsigned integer expressions user.cpp:41: warning: comparison between signed and unsigned integer expressions