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View Compilation Error

0_0_33279806_6342.cpp: In function 'int BFS(int, int)':
0_0_33279806_6342.cpp:14:2: error: 'queue' was not declared in this scope
  queue<point> que;
  ^
0_0_33279806_6342.cpp:14:2: 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_33279806_6342.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:96:11: note:   'std::queue'
     class queue
           ^
0_0_33279806_6342.cpp:14:13: error: expected primary-expression before '>' token
  queue<point> que;
             ^
0_0_33279806_6342.cpp:14:15: error: 'que' was not declared in this scope
  queue<point> que;
               ^
0_0_33279806_6342.cpp:27:28: error: 'j' was not declared in this scope
    if(!vis[x1][y1] && M[i][j] == '.'){
                            ^
0_0_33279806_6342.cpp: In function 'int main()':
0_0_33279806_6342.cpp:39:8: error: 'cin' was not declared in this scope
  while(cin>>n>>m){
        ^
0_0_33279806_6342.cpp:39:8: 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_33279806_6342.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
0_0_33279806_6342.cpp:48:3: error: 'cout' was not declared in this scope
   cout<<BFS(x0,y0)<<endl;
   ^
0_0_33279806_6342.cpp:48:3: 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_33279806_6342.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
0_0_33279806_6342.cpp:48:21: error: 'endl' was not declared in this scope
   cout<<BFS(x0,y0)<<endl;
                     ^
0_0_33279806_6342.cpp:48:21: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:39:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_33279806_6342.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^


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