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View Compilation Error

0_0_14849387_22024.cpp: In function 'int bfs()':
0_0_14849387_22024.cpp:16:24: error: no matching function for call to 'std::queue<int>::push(std::pair<int, int>)'
  q.push(make_pair(st,0));
                        ^
0_0_14849387_22024.cpp:16:24: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:64:0,
                 from 0_0_14849387_22024.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:215:7: note: void std::queue<_Tp, _Sequence>::push(const value_type&) [with _Tp = int; _Sequence = std::deque<int, std::allocator<int> >; std::queue<_Tp, _Sequence>::value_type = int]
       push(const value_type& __x)
       ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:215:7: note:   no known conversion for argument 1 from 'std::pair<int, int>' to 'const value_type& {aka const int&}'
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:220:7: note: void std::queue<_Tp, _Sequence>::push(std::queue<_Tp, _Sequence>::value_type&&) [with _Tp = int; _Sequence = std::deque<int, std::allocator<int> >; std::queue<_Tp, _Sequence>::value_type = int]
       push(value_type&& __x)
       ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:220:7: note:   no known conversion for argument 1 from 'std::pair<int, int>' to 'std::queue<int>::value_type&& {aka int&&}'
0_0_14849387_22024.cpp:20:22: error: request for member 'first' in 'q.std::queue<_Tp, _Sequence>::front<int, std::deque<int, std::allocator<int> > >()', which is of non-class type 'int'
   int te = q.front().first;
                      ^
0_0_14849387_22024.cpp:23:35: error: 'pow' was not declared in this scope
    int cut = (te % (int)pow(10.0,i) % 10 == 1) ? te + 8 * (int)pow(10.0,i) : te - (int)pow(10.0,i);
                                   ^
0_0_14849387_22024.cpp:26:15: error: request for member 'second' in 'te', which is of non-class type 'int'
     return te.second;
               ^
0_0_14849387_22024.cpp:29:29: error: request for member 'second' in 'te', which is of non-class type 'int'
     q.push(make_pair(cut,te.second + 1));
                             ^
0_0_14849387_22024.cpp:34:30: error: request for member 'second' in 'te', which is of non-class type 'int'
     q.push(make_pair(plus,te.second + 1));
                              ^


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