Eroare de compilare: user.cpp: In function ‘void add(std::string&, int, trie*)’: user.cpp:42:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == a.size()){ ^ user.cpp: In function ‘int nr(std::string&, int, trie*)’: user.cpp:55:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == a.size()){ ^ user.cpp: In function ‘int tip(std::string&, int, trie*)’: user.cpp:62:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == a.size()){ ^ user.cpp: In function ‘int fct(std::string&, std::string&, int, trie*)’: user.cpp:69:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == a.size() || j==b.size()){ ^ user.cpp:69:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == a.size() || j==b.size()){ ^ user.cpp: In function ‘bool del(std::string&, int, trie*)’: user.cpp:76:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == a.size()) --c->cnt; ^ user.cpp: In function ‘int main()’: user.cpp:112:3: error: reference to ‘min’ is ambiguous min = 2000; ^ user.cpp:8:32: note: candidates are: int min int M[10001][20], I, t,o=0,g,u,min; ^ In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/stl_algobase.h:239:5: note: template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare) min(const _Tp& __a, const _Tp& __b, _Compare __comp) ^ /usr/include/c++/4.8/bits/stl_algobase.h:193:5: note: template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&) min(const _Tp& __a, const _Tp& __b) ^ user.cpp:116:8: error: reference to ‘min’ is ambiguous if (min> depth[index])min = depth[index]; ^ user.cpp:8:32: note: candidates are: int min int M[10001][20], I, t,o=0,g,u,min; ^ In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38,