Compilare: main.cpp: In function 'int SUFFIX_ARRAY::lcp(const string&, int)': main.cpp:101:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (ans = 0; ans < _s.size() && ans < n - poz; ++ans) { ~~~~^~~~~~~~~~~ main.cpp: In function 'bool SUFFIX_ARRAY::smaller(const string&, int)': main.cpp:109:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < _s.size() && i < n - poz; ++i) { ~~^~~~~~~~~~~ main.cpp:113:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return (_s.size() <= n - poz); ~~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'int SUFFIX_ARRAY::query(int, int)': main.cpp:137:5: warning: control reaches end of non-void function [-Wreturn-type] } ^