Compilare: main.cpp: In function 'void add(int, 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 ( n == s.size() ) { /// end of word | ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:77:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<node>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for ( int i = 1; i < trie.size(); i ++ ) { | ~~^~~~~~~~~~~~~ main.cpp:96:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | for ( int l = 1; l < trie[i].dp.size(); l ++ ) { | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:98:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 98 | if ( j + l >= trie[p].dp.size() ) | ~~~~~~^~~~~~~~~~~~~~~~~~~~