Compilare: main.cpp: In member function 'void AhoCorasick::solve(std::string)': main.cpp:33:20: warning: statement has no effect [-Wunused-value] 33 | #define debug(...) 0 | ^ main.cpp:367:13: note: in expansion of macro 'debug' 367 | debug("p = %\n", p); | ^~~~~ main.cpp:33:20: warning: statement has no effect [-Wunused-value] 33 | #define debug(...) 0 | ^ main.cpp:372:13: note: in expansion of macro 'debug' 372 | debug("node == root ? %\n", node == root); | ^~~~~ main.cpp: In function 'int __solve(int)': main.cpp:398:29: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: 398 | cout<<(where[i]->cnt)<<'\n'; | ^ In file included from /usr/include/c++/12.2.1/ostream:833, from /usr/include/c++/12.2.1/istream:39, from /usr/include/c++/12.2.1/sstream:38, from /usr/include/c++/12.2.1/complex:45, from /usr/include/c++/12.2.1/ccomplex:39, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:27: /usr/include/c++/12.2.1/bits/ostream.tcc:105:5: note: candidate 1: 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(int) [with _CharT = char; _Traits = std::char_traits<char>]' 105 | basic_ostream<_CharT, _Traits>:: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:125:10: note: candidate 2: 'Ostream& operator<<(Ostream&, const ModInt&) [with Ostream = std::basic_ofstream<char>]' 125 | Ostream &operator<<(Ostream &str, const ModInt &x) {return str<<x.x;} | ^~~~~~~~