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View Compilation Error

0_0_22341488_19841.cpp: In function 'int dfs(int, int)':
0_0_22341488_19841.cpp:50:11: error: 'end1' was not declared in this scope
     if(s==end1||cp==0)return cp;
           ^
0_0_22341488_19841.cpp: In function 'int dinic()':
0_0_22341488_19841.cpp:73:21: error: 'end1' was not declared in this scope
     while(bfs(start,end1))//汇点不在层次图中、算法终?
                     ^
0_0_22341488_19841.cpp:75:24: error: reference to 'end' is ambiguous
         for(int i=0;i<=end;i++)
                        ^
0_0_22341488_19841.cpp:18:11: note: candidates are: int end
 int start,end;
           ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/deque:65:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
                 from 0_0_22341488_19841.cpp:4:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/range_access.h:97:5: note:                 template<class _Tp, long long unsigned int _Nm> _Tp* std::end(_Tp (&)[_Nm])
     end(_Tp (&__arr)[_Nm])
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/range_access.h:78:5: note:                 template<class _Container> decltype (__cont.end()) std::end(const _Container&)
     end(const _Container& __cont) -> decltype(__cont.end())
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/range_access.h:68:5: note:                 template<class _Container> decltype (__cont.end()) std::end(_Container&)
     end(_Container& __cont) -> decltype(__cont.end())
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:63:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/deque:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
                 from 0_0_22341488_19841.cpp:4:
GCC4.9.2/x86_64-w64-mingw32/include/c++/initializer_list:99:5: note:                 template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)
     end(initializer_list<_Tp> __ils) noexcept
     ^
0_0_22341488_19841.cpp: In function 'int main()':
0_0_22341488_19841.cpp:103:10: error: 'end1' was not declared in this scope
  start=0;end1=n+m+1;
          ^


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