Compilare: user.cpp: In function ‘int main()’: user.cpp:23:32: warning: unused variable ‘p’ [-Wunused-variable] int i, j, k, m, n, maxS=0, p, u, aria, cam, lin, col; ^ user.cpp:23:35: warning: unused variable ‘u’ [-Wunused-variable] int i, j, k, m, n, maxS=0, p, u, aria, cam, lin, col; ^ user.cpp:55:21: warning: ‘col’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<lin<<' '<<col<<' '<<1+maxS<<'\n'; ^ user.cpp:55:11: warning: ‘lin’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<lin<<' '<<col<<' '<<1+maxS<<'\n'; ^