Eroare de compilare: user.cpp:13:37: error: wrong number of template arguments (1, should be 5) unordered_multimap <pair <int, int> > my_set; ^ In file included from /usr/include/c++/4.8/unordered_map:48:0, from user.cpp:3: /usr/include/c++/4.8/bits/unordered_map.h:778:11: error: provided for ‘template<class _Key, class _Tp, class _Hash, class _Pred, class _Alloc> class std::unordered_multimap’ class unordered_multimap : __check_copy_constructible<_Alloc> ^ user.cpp:13:45: error: invalid type in declaration before ‘;’ token unordered_multimap <pair <int, int> > my_set; ^ user.cpp: In function ‘int solve(int)’: user.cpp:16:12: error: request for member ‘clear’ in ‘my_set’, which is of non-class type ‘int’ my_set.clear(); ^ user.cpp:29:12: error: request for member ‘insert’ in ‘my_set’, which is of non-class type ‘int’ my_set.insert( make_pair( V1, V2 )); ^ user.cpp:35:16: error: request for member ‘insert’ in ‘my_set’, which is of non-class type ‘int’ my_set.insert( make_pair( V1, V2 )); ^ user.cpp:37:20: error: request for member ‘count’ in ‘my_set’, which is of non-class type ‘int’ if( my_set.count( make_pair( V1, V2 )) >= K ) ^ user.cpp: In function ‘int main()’: user.cpp:46:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "substr.in" , "r", stdin ); ^ user.cpp:47:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "substr.out", "w", stdout ); ^ user.cpp:49:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d %d %s", &N, &K, S ); ^