Compilare: main.cpp: In function 'void ins(int, int)': main.cpp:34:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | if (pos!=(s.size())) | ~~~^~~~~~~~~~~~ main.cpp: In function 'void ers(int, int)': main.cpp:43:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | if (pos!=(s.size())) | ~~~^~~~~~~~~~~~ main.cpp: In function 'void app(int, int)': main.cpp:53:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | if (pos!=(s.size()) && trie[nodeidx].muchii[s[pos]-'a'+1]!=0) | ~~~^~~~~~~~~~~~ main.cpp:57:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | if (pos!=(s.size()) && trie[nodeidx].muchii[s[pos]-'a'+1]==0) | ~~~^~~~~~~~~~~~ main.cpp: In function 'void lgpref(int, int)': main.cpp:73:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | if (pos!=(s.size()) && trie[nodeidx].muchii[s[pos]-'a'+1]!=0) | ~~~^~~~~~~~~~~~