Compilare: user.cpp: In member function ‘int Trie::Querry(char*)’: user.cpp:30:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < C.size(); ++i) ^ user.cpp: In function ‘void read()’: user.cpp:44:24: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2005]’ [-Wformat=] scanf("%s\n",&c); ^ user.cpp: In function ‘void solve()’: user.cpp:65:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < words[C[0]].size(); ++j) ^