Compilare: main.cpp: In function 'void add(trie*)': main.cpp:30:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | if(toReadIndex == toRead.size()) { | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:87:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | for(int i = 0;i < s.size();i++) { | ~~^~~~~~~~~~