Compilare: user.cpp: In function ‘void fil(int, int)’: user.cpp:19:13: warning: unused variable ‘ii’ [-Wunused-variable] int l,m,ii; ^ user.cpp: In function ‘int main()’: user.cpp:71:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=1; k<vv.size(); k++) ^ user.cpp:78:19: warning: ‘c2’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<l2<<" "<<c2<<" "<<lmax2; ^ user.cpp:78:10: warning: ‘l2’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<l2<<" "<<c2<<" "<<lmax2; ^