Compilare: main.cpp: In member function 'void trie::dfs()': main.cpp:30:23: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 30 | if (jmek.size () <= k) | ~~~~~~~~~~~~~^~~~ main.cpp:55:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for (int i = 1; i < e->jmek.size (); i++) | ~~^~~~~~~~~~~~~~~~~