Compilare: main.cpp: In function 'void insert(const string&, int, TrieNode*)': main.cpp:23:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | if (pos == word.size()) { | ~~~~^~~~~~~~~~~~~~ main.cpp: In function 'void erase(const string&, int, TrieNode*&)': main.cpp:39:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | if (pos == word.size()) { | ~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int printCount(const string&, int, TrieNode*&)': main.cpp:55:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | if (pos == word.size()) | ~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int longComPref(const string&, int, const TrieNode*)': main.cpp:69:40: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 69 | if (node == nullptr or word.size() == pos) | ~~~~~~~~~~~~^~~~~~