Compilare: user.cpp: In function ‘void citeste()’: user.cpp:22: warning: unused variable ‘x’ user.cpp: In function ‘void fa(int, int, int, int, int)’: user.cpp:32: warning: comparison between signed and unsigned integer expressions user.cpp:36: warning: comparison between signed and unsigned integer expressions user.cpp:44: warning: comparison between signed and unsigned integer expressions user.cpp:61: warning: comparison between signed and unsigned integer expressions user.cpp:65: warning: comparison between signed and unsigned integer expressions user.cpp:73: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void rezolva()’: user.cpp:86: warning: unused variable ‘j’