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View Compilation Error

0_0_25191707_12637.cpp: In function 'void BFS()':
0_0_25191707_12637.cpp:22:5: error: 'queue' was not declared in this scope
     queue<lqq>link;
     ^
0_0_25191707_12637.cpp:22:5: 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_25191707_12637.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:96:11: note:   'std::queue'
     class queue
           ^
0_0_25191707_12637.cpp:22:14: error: expected primary-expression before '>' token
     queue<lqq>link;
              ^
0_0_25191707_12637.cpp:22:15: error: 'link' was not declared in this scope
     queue<lqq>link;
               ^
0_0_25191707_12637.cpp: In function 'int main()':
0_0_25191707_12637.cpp:46:5: error: 'cin' was not declared in this scope
     cin>>T;
     ^
0_0_25191707_12637.cpp:46:5: 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_25191707_12637.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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