Compilare: user.cpp: In function ‘void Lee()’: user.cpp:46:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j, vi, vj; ^ user.cpp:46:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, vi, vj; ^ user.cpp:46:15: warning: unused variable ‘vi’ [-Wunused-variable] int i, j, vi, vj; ^ user.cpp:46:19: warning: unused variable ‘vj’ [-Wunused-variable] int i, j, vi, vj; ^ user.cpp: In function ‘void Fill()’: user.cpp:58:23: warning: unused variable ‘nr’ [-Wunused-variable] int vi, vj, i, j, nr; ^