0_0_21790860_14212.cpp: In function 'bool findpath()':
0_0_21790860_14212.cpp:43:4: error: reference to 'prev' is ambiguous
prev[to[i]]=w;
^
0_0_21790860_14212.cpp:13:14: note: candidates are: int prev [1111]
int dist[MN],prev[MN],pree[MN],nxt[MM],to[MM],fl[MM],cost[MM],head[MN],src,sink,num;
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_21790860_14212.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
prev(_BidirectionalIterator __x, typename
^
0_0_21790860_14212.cpp: In function 'int augment()':
0_0_21790860_14212.cpp:62:5: error: reference to 'prev' is ambiguous
u=prev[u];
^
0_0_21790860_14212.cpp:13:14: note: candidates are: int prev [1111]
int dist[MN],prev[MN],pree[MN],nxt[MM],to[MM],fl[MM],cost[MM],head[MN],src,sink,num;
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_21790860_14212.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
prev(_BidirectionalIterator __x, typename
^
0_0_21790860_14212.cpp:68:5: error: reference to 'prev' is ambiguous
u=prev[u];
^
0_0_21790860_14212.cpp:13:14: note: candidates are: int prev [1111]
int dist[MN],prev[MN],pree[MN],nxt[MM],to[MM],fl[MM],cost[MM],head[MN],src,sink,num;
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_21790860_14212.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
prev(_BidirectionalIterator __x, typename
^
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