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View Compilation Error

0_0_36694056_12245.cpp: In function 'int Spfa()':
0_0_36694056_12245.cpp:51:1: error: reference to 'stack' is ambiguous
 stack[++top] = i;
 ^
0_0_36694056_12245.cpp:30:5: note: candidates are: int stack [1004]
 int stack[NN];
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36694056_12245.cpp:14:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_stack.h:99:11: note:                 template<class _Tp, class _Sequence> class std::stack
     class stack
           ^
0_0_36694056_12245.cpp:58:7: error: reference to 'stack' is ambiguous
 cur = stack[top--];
       ^
0_0_36694056_12245.cpp:30:5: note: candidates are: int stack [1004]
 int stack[NN];
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36694056_12245.cpp:14:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_stack.h:99:11: note:                 template<class _Tp, class _Sequence> class std::stack
     class stack
           ^
0_0_36694056_12245.cpp:72:1: error: reference to 'stack' is ambiguous
 stack[++top] = nxt;
 ^
0_0_36694056_12245.cpp:30:5: note: candidates are: int stack [1004]
 int stack[NN];
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36694056_12245.cpp:14:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_stack.h:99:11: note:                 template<class _Tp, class _Sequence> class std::stack
     class stack
           ^


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