Compilare: user.cpp: In function ‘void citeste()’: user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int extinde(int, int)’: user.cpp:30: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void bagaZvalues()’: user.cpp:39: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void rezolva()’: user.cpp:65: warning: comparison between signed and unsigned integer expressions