Eroare de compilare: user.cpp:6:14: error: ‘pair’ was not declared in this scope bool compare(pair<int,int> x,pair<int,int> y) ^ user.cpp:6:14: note: suggested alternative: In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0, from /usr/include/c++/4.8/bits/char_traits.h:39, 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_pair.h:96:12: note: ‘std::pair’ struct pair ^ user.cpp:6:19: error: expected primary-expression before ‘int’ bool compare(pair<int,int> x,pair<int,int> y) ^ user.cpp:6:23: error: expected primary-expression before ‘int’ bool compare(pair<int,int> x,pair<int,int> y) ^ user.cpp:6:30: error: ‘pair’ was not declared in this scope bool compare(pair<int,int> x,pair<int,int> y) ^ user.cpp:6:30: note: suggested alternative: In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0, from /usr/include/c++/4.8/bits/char_traits.h:39, 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_pair.h:96:12: note: ‘std::pair’ struct pair ^ user.cpp:6:35: error: expected primary-expression before ‘int’ bool compare(pair<int,int> x,pair<int,int> y) ^ user.cpp:6:39: error: expected primary-expression before ‘int’ bool compare(pair<int,int> x,pair<int,int> y) ^ user.cpp:6:45: error: expression list treated as compound expression in initializer [-fpermissive] bool compare(pair<int,int> x,pair<int,int> y) ^ user.cpp:7:1: error: expected ‘,’ or ‘;’ before ‘{’ token { ^ user.cpp:10:1: error: ‘priority_queue’ does not name a type priority_queue<pair<int,int>,vector<pair<int,int> >,compare>q; ^ user.cpp:11:1: error: ‘vector’ does not name a type vector<pair<int,int>> v[50001]; ^