0_0_20555517_12727.cpp: In function 'void dfs(int, int, int)':
0_0_20555517_12727.cpp:14:18: error: reference to 'next' is ambiguous
int tx=x+next[i][0],ty=y+next[i][1];
^
0_0_20555517_12727.cpp:8:5: note: candidates are: int next [3][2]
int next[3][2]={{0,1},{-1,0},{1,0}};
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_20555517_12727.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
next(_ForwardIterator __x, typename
^
0_0_20555517_12727.cpp:15:24: error: 'ty' was not declared in this scope
if(tx<1||tx>n||ty<1||ty>m||done[tx][ty]) continue;
^
0_0_20555517_12727.cpp:16:20: error: 'ty' was not declared in this scope
if(s+a[tx][ty]<=book[tx][ty]) continue;
^
0_0_20555517_12727.cpp:17:18: error: 'ty' was not declared in this scope
book[tx][ty]=s+a[tx][ty];
^
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