Compilare: main.cpp: In function 'trieNode* getNode(trieNode*)': main.cpp:23:58: warning: passing NULL to non-pointer argument 2 of 'void* memset(void*, int, size_t)' [-Wconversion-null] memset(aux -> children, NULL, sizeof(aux -> children)); ^ main.cpp: In function 'void Insert(trieNode*, std::__cxx11::string)': main.cpp:39:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<key.size(); i++) ~^~~~~~~~~~~ main.cpp:50:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=it.second; j<cuv[it.first].size(); j++) ~^~~~~~~~~~~~~~~~~~~~~ main.cpp:61:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i == key.size() - 1) ~~^~~~~~~~~~~~~~~~~