View Compilation Error

0_0_17022458_446.cpp:4:1: error: 'usingnamespace' does not name a type
 usingnamespace std;
 ^
0_0_17022458_446.cpp: In function 'void bfs()':
0_0_17022458_446.cpp:72:5: error: 'queue' was not declared in this scope
     queue<SS> que;
     ^
0_0_17022458_446.cpp:72:5: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:64:0,
                 from 0_0_17022458_446.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:96:11: note:   'std::queue'
     class queue
           ^
0_0_17022458_446.cpp:72:13: error: expected primary-expression before '>' token
     queue<SS> que;
             ^
0_0_17022458_446.cpp:72:15: error: 'que' was not declared in this scope
     queue<SS> que;
               ^