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Compile Error

/in/foo.cc: In function 'int main()':
/in/foo.cc:18:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int j=1;j<=m;j++)
  ^~~
/in/foo.cc:20:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
    cin>>a1>>a2>>b1>>b2;
    ^~~
/in/foo.cc:31:18: error: reference to 'next' is ambiguous
     tx=a[head].x+next[i][0];
                  ^~~~
/in/foo.cc:6:5: note: candidates are: int next [4][4]
 int next[4][4]={{-1,0},{1,0},{0,-1},{0,1}};
     ^~~~
In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0,
                 from /usr/include/c++/6/bits/char_traits.h:39,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_iterator_base_funcs.h:205:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^~~~
/in/foo.cc:32:20: error: reference to 'next' is ambiguous
       ty=a[head].y+next[i][1];
                    ^~~~
/in/foo.cc:6:5: note: candidates are: int next [4][4]
 int next[4][4]={{-1,0},{1,0},{0,-1},{0,1}};
     ^~~~
In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0,
                 from /usr/include/c++/6/bits/char_traits.h:39,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_iterator_base_funcs.h:205:5: note:                 template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
     next(_ForwardIterator __x, typename
     ^~~~

信息

递交者
类型
递交
题目
最少转弯问题
语言
C++
递交时间
2017-12-25 21:51:02
评测时间
2017-12-25 21:51:02
评测机
分数
0
总耗时
0ms
峰值内存
0 Bytes