Compilare: user.cpp:105:2: warning: no newline at end of file user.cpp: In function 'void df1(int)': user.cpp:18: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void df2(int)': user.cpp:29: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void Bellman()': user.cpp:47: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:77: warning: comparison between signed and unsigned integer expressions user.cpp:98: warning: comparison between signed and unsigned integer expressions