Compilare: main.cpp: In function 'void dfs2(int, bool)': main.cpp:30:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 30 | if (len < t.length() || s[curr] < t.back()) { | ~~~~^~~~~~~~~~~~ main.cpp:50:31: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} and 'int' [-Wsign-compare] 50 | if (!isBetter && t.length() < len && best < s[nxt[curr]]) { | ~~~~~~~~~~~^~~~~