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View Compilation Error

0_0_36668997_14633.cpp: In function 'void Gram_Scan(Point*, int&)':
0_0_36668997_14633.cpp:69:1: error: reference to 'stack' is ambiguous
 stack[++t]=1;
 ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:70:4: error: reference to 'stack' is ambiguous
 bo[stack[t]]=false;
    ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:74:1: error: reference to 'stack' is ambiguous
 stack[++t]=2;
 ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:75:4: error: reference to 'stack' is ambiguous
 bo[stack[t]]=false;
    ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:80:18: error: reference to 'stack' is ambiguous
 if(bo[i]&&Xdet(p[stack[t-1]],p[stack[t]],p[i])>=0)
                  ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:80:32: error: reference to 'stack' is ambiguous
 if(bo[i]&&Xdet(p[stack[t-1]],p[stack[t]],p[i])>=0)
                                ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:82:1: error: reference to 'stack' is ambiguous
 stack[++t]=i;
 ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:87:20: error: reference to 'stack' is ambiguous
 while(t>=2&&Xdet(p[stack[t-1]],p[stack[t]],p[i])<0)
                    ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:87:34: error: reference to 'stack' is ambiguous
 while(t>=2&&Xdet(p[stack[t-1]],p[stack[t]],p[i])<0)
                                  ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:89:4: error: reference to 'stack' is ambiguous
 bo[stack[t]]=true;
    ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:92:1: error: reference to 'stack' is ambiguous
 stack[++t]=i;
 ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:93:4: error: reference to 'stack' is ambiguous
 bo[stack[t]]=false;
    ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:96:18: error: reference to 'stack' is ambiguous
 if(bo[i]&&Xdet(p[stack[t-1]],p[stack[t]],p[i])>=0)
                  ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:96:32: error: reference to 'stack' is ambiguous
 if(bo[i]&&Xdet(p[stack[t-1]],p[stack[t]],p[i])>=0)
                                ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:98:1: error: reference to 'stack' is ambiguous
 stack[++t]=i;
 ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:103:20: error: reference to 'stack' is ambiguous
 while(t>=2&&Xdet(p[stack[t-1]],p[stack[t]],p[i])<0)
                    ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:103:34: error: reference to 'stack' is ambiguous
 while(t>=2&&Xdet(p[stack[t-1]],p[stack[t]],p[i])<0)
                                  ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005]
 int stack[M];//form 1 to t;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_36668997_14633.cpp:12:
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_36668997_14633.cpp:105:4: error: reference to 'stack' is ambiguous
 bo[stack[t]]=true;
    ^
0_0_36668997_14633.cpp:29:5: note: candidates are: int stack [50005


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