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View Compilation Error

0_0_34146419_7624.cpp: In function 'void bfs()':
0_0_34146419_7624.cpp:26:5: error: 'priority_queue' was not declared in this scope
     priority_queue<lenka>p;
     ^
0_0_34146419_7624.cpp:26:5: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:64:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:85,
                 from 0_0_34146419_7624.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:370:11: note:   'std::priority_queue'
     class priority_queue
           ^
0_0_34146419_7624.cpp:26:25: error: expected primary-expression before '>' token
     priority_queue<lenka>p;
                         ^
0_0_34146419_7624.cpp:26:26: error: 'p' was not declared in this scope
     priority_queue<lenka>p;
                          ^
0_0_34146419_7624.cpp: In function 'int main()':
0_0_34146419_7624.cpp:45:5: error: 'cin' was not declared in this scope
     cin>>T;
     ^
0_0_34146419_7624.cpp:45:5: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:74:0,
                 from 0_0_34146419_7624.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^


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