Compilare: user.cpp: In member function ‘void SuffixArray::PreprocessLcp()’: user.cpp:53:13: warning: unused variable ‘x’ [-Wunused-variable] int x, y, lg = log[n]; ^ user.cpp:53:16: warning: unused variable ‘y’ [-Wunused-variable] int x, y, lg = log[n]; ^ user.cpp: In member function ‘void SuffixArray::SetLog()’: user.cpp:104:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 2; i < s.size()+1; ++i) ^