Compilare: user.cpp:23: warning: this decimal constant is unsigned only in ISO C90 user.cpp:134:2: warning: no newline at end of file user.cpp: In function 'void bf(int)': user.cpp:13: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:35: warning: comparison between signed and unsigned integer expressions user.cpp:37: warning: comparison between signed and unsigned integer expressions user.cpp:48: warning: comparison between signed and unsigned integer expressions user.cpp:51: warning: comparison between signed and unsigned integer expressions user.cpp:52: warning: comparison between signed and unsigned integer expressions user.cpp:54: warning: comparison between signed and unsigned integer expressions user.cpp:58: warning: comparison between signed and unsigned integer expressions user.cpp:66: warning: comparison between signed and unsigned integer expressions user.cpp:67: warning: comparison between signed and unsigned integer expressions user.cpp:68: warning: comparison between signed and unsigned integer expressions