Eroare de compilare: user.cpp: In function ‘bool in_hash(int, int, int)’: user.cpp:50:30: error: reference to ‘hash’ is ambiguous for(int i = 0; i < (int) hash[type][h0].size(); i++) ^ user.cpp:15:26: note: candidates are: std::vector<std::pair<int, int> > hash [2][1000003] vector< pair<int, int> > hash[2][1000003]; ^ In file included from /usr/include/c++/4.8/bits/stl_bvector.h:1134:0, from /usr/include/c++/4.8/vector:65, from user.cpp:3: /usr/include/c++/4.8/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^ user.cpp:51:19: error: reference to ‘hash’ is ambiguous if(h12 == hash[type][h0][i]) return 1; ^ user.cpp:15:26: note: candidates are: std::vector<std::pair<int, int> > hash [2][1000003] vector< pair<int, int> > hash[2][1000003]; ^ In file included from /usr/include/c++/4.8/bits/stl_bvector.h:1134:0, from /usr/include/c++/4.8/vector:65, from user.cpp:3: /usr/include/c++/4.8/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^ user.cpp: In function ‘void add_to_hash(int, int, int)’: user.cpp:61:5: error: reference to ‘hash’ is ambiguous hash[type][h0].push_back(h12); ^ user.cpp:15:26: note: candidates are: std::vector<std::pair<int, int> > hash [2][1000003] vector< pair<int, int> > hash[2][1000003]; ^ In file included from /usr/include/c++/4.8/bits/stl_bvector.h:1134:0, from /usr/include/c++/4.8/vector:65, from user.cpp:3: /usr/include/c++/4.8/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^ user.cpp: In function ‘int main()’: user.cpp:122:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("unicat.in", "r", stdin); ^ user.cpp:123:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("unicat.out", "w", stdout); ^ user.cpp:132:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", a + 1); ^ user.cpp:133:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", b + 1);