0_0_35896456_19737.cpp:1:1: error: stray '\265' in program
递推过程：
^
0_0_35896456_19737.cpp:1:1: error: stray '\335' in program
0_0_35896456_19737.cpp:1:1: error: stray '\315' in program
0_0_35896456_19737.cpp:1:1: error: stray '\306' in program
0_0_35896456_19737.cpp:1:1: error: stray '\271' in program
0_0_35896456_19737.cpp:1:1: error: stray '\375' in program
0_0_35896456_19737.cpp:1:1: error: stray '\263' in program
0_0_35896456_19737.cpp:1:1: error: stray '\314' in program
0_0_35896456_19737.cpp:1:1: error: stray '\243' in program
0_0_35896456_19737.cpp:1:1: error: stray '\272' in program
0_0_35896456_19737.cpp:5:1: error: stray '\241' in program
……
^
0_0_35896456_19737.cpp:5:1: error: stray '\255' in program
0_0_35896456_19737.cpp:5:1: error: stray '\241' in program
0_0_35896456_19737.cpp:5:1: error: stray '\255' in program
0_0_35896456_19737.cpp:7:1: error: stray '\327' in program
左右累加整理得a1+an=a0+a(n+1)-2*(c1+c2+...+cn)
^
0_0_35896456_19737.cpp:7:1: error: stray '\363' in program
0_0_35896456_19737.cpp:7:1: error: stray '\323' in program
0_0_35896456_19737.cpp:7:1: error: stray '\322' in program
0_0_35896456_19737.cpp:7:1: error: stray '\300' in program
0_0_35896456_19737.cpp:7:1: error: stray '\333' in program
0_0_35896456_19737.cpp:7:1: error: stray '\274' in program
0_0_35896456_19737.cpp:7:1: error: stray '\323' in program
0_0_35896456_19737.cpp:7:1: error: stray '\325' in program
0_0_35896456_19737.cpp:7:1: error: stray '\373' in program
0_0_35896456_19737.cpp:7:1: error: stray '\300' in program
0_0_35896456_19737.cpp:7:1: error: stray '\355' in program
0_0_35896456_19737.cpp:7:1: error: stray '\265' in program
0_0_35896456_19737.cpp:7:1: error: stray '\303' in program
0_0_35896456_19737.cpp:8:1: error: stray '\325' in program
这里记c1+c2+...+cn=sum(n)
^
0_0_35896456_19737.cpp:8:1: error: stray '\342' in program
0_0_35896456_19737.cpp:8:1: error: stray '\300' in program
0_0_35896456_19737.cpp:8:1: error: stray '\357' in program
0_0_35896456_19737.cpp:8:1: error: stray '\274' in program
0_0_35896456_19737.cpp:8:1: error: stray '\307' in program
0_0_35896456_19737.cpp:9:1: error: stray '\324' in program
再用上式来一遍累加
^
0_0_35896456_19737.cpp:9:1: error: stray '\331' in program
0_0_35896456_19737.cpp:9:1: error: stray '\323' in program
0_0_35896456_19737.cpp:9:1: error: stray '\303' in program
0_0_35896456_19737.cpp:9:1: error: stray '\311' in program
0_0_35896456_19737.cpp:9:1: error: stray '\317' in program
0_0_35896456_19737.cpp:9:1: error: stray '\312' in program
0_0_35896456_19737.cpp:9:1: error: stray '\275' in program
0_0_35896456_19737.cpp:9:1: error: stray '\300' in program
0_0_35896456_19737.cpp:9:1: error: stray '\264' in program
0_0_35896456_19737.cpp:9:1: error: stray '\322' in program
0_0_35896456_19737.cpp:9:1: error: stray '\273' in program
0_0_35896456_19737.cpp:9:1: error: stray '\261' in program
0_0_35896456_19737.cpp:9:1: error: stray '\351' in program
0_0_35896456_19737.cpp:9:1: error: stray '\300' in program
0_0_35896456_19737.cpp:9:1: error: stray '\333' in program
0_0_35896456_19737.cpp:9:1: error: stray '\274' in program
0_0_35896456_19737.cpp:9:1: error: stray '\323' in program
0_0_35896456_19737.cpp:13:1: error: stray '\241' in program
……
^
0_0_35896456_19737.cpp:13:1: error: stray '\255' in program
0_0_35896456_19737.cpp:13:1: error: stray '\241' in program
0_0_35896456_19737.cpp:13:1: error: stray '\255' in program
0_0_35896456_19737.cpp:16:1: error: stray '\325' in program
(这里不妨加上n=1时的式子）
^
0_0_35896456_19737.cpp:16:1: error: stray '\342' in program
0_0_35896456_19737.cpp:16:1: error: stray '\300' in program
0_0_35896456_19737.cpp:16:1: error: stray '\357' in program
0_0_35896456_19737.cpp:16:1: error: stray '\262' in program
0_0_35896456_19737.cpp:16:1: error: stray '\273' in program
0_0_35896456_19737.cpp:16:1: error: stray '\267' in program
0_0_35896456_19737.cpp:16:1: error: stray '\301' in program
0_0_35896456_19737.cpp:16:1: error: stray '\274' in program
0_0_35896456_19737.cpp:16:1: error: stray '\323' in program
0_0_35896456_19737.cpp:16:1: error: stray '\311' in program
0_0_35896456_19737.cpp:16:1: error: stray '\317' in program
0_0_35896456_19737.cpp:16:1: error: stray '\312' in program
0_0_35896456_19737.cpp:16:1: error: stray '\261' in program
0_0_35896456_19737.cpp:16:1: error: stray '\265' in program
0_0_35896456_19737.cpp:16:1: error: stray '\304' in program
0_0_35896456_19737.cpp:16:1: error: stray '\312' in program
0_0_35896456_19737.cpp:16:1: error: stray '\275' in program
0_0_35896456_19737.cpp:16:1: error: stray '\327' in program
0_0_35896456_19737.cpp:16:1: error: stray '\323' in program
0_0_35896456_19737.cpp:16:1: error: stray '\243' in program
0_0_35896456_19737.cpp:16:1: error: stray '\251' in program
0_0_35896456_19737.cpp:17:1: error: stray '\300' in program
累加得
^
0_0_35896456_19737.cpp:17:1: error: stray '\333' in program
0_0_35896456_19737.cpp:17:1: error: stray '\274' in program
0_0_35896456_19737.cpp:17:1: error: stray '\323' in program
0_0_35896456_19737.cpp:17:1: error: stray '\265' in program
0_0_35896456_19737.cpp:17:1: error: stray '\303' in program
0_0_35896456_19737.cpp:19:1: error: stray '\325' in program
整理得
^
0_0_35896456_19737.cpp:19:1: error: stray '\373' in program
0_0_35896456_19737.cpp:19:1: error: stray '\300' in program
0_0_35896456_19737.cpp:19:1: error: stray '\355' in program
0_0_35896456_19737.cpp:19:1: error: stray '\265' in program
0_0_35896456_19737.cpp:19:1: error: stray '\303' in program
0_0_35896456_19737.cpp:22:1: error: stray '\322' in program
以下给出c++AC代码：
^
0_0_35896456_19737.cpp:22:1: error: stray '\324' in program
0_0_35896456_19737.cpp:22:1: error: stray '\317' in program
0_0_35896456_19737.cpp:22:1: error: stray '\302' in program
0_0_35896456_19737.cpp:22:1: error: stray '\270' in program
0_0_35896456_19737.cpp:22:1: error: stray '\370' in program
0_0_35896456_19737.cpp:22:1: error: stray '\263' in program
0_0_35896456_19737.cpp:22:1: error: stray '\366' in program
0_0_35896456_19737.cpp:22:1: error: stray '\264' in program
0_0_35896456_19737.cpp:22:1: error: stray '\372' in program
0_0_35896456_19737.cpp:22:1: error: stray '\302' in program
0_0_35896456_19737.cpp:22:1: error: stray '\353' in program
0_0_35896456_19737.cpp:22:1: error: stray '\243' in program
0_0_35896456_19737.cpp:22:1: error: stray '\272' in program
0_0_35896456_19737.cpp:2:1: error: 'a1' does not name a type
a1=(a0+a2)/2-c1
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/exception:162:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:39,
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_35896456_19737.cpp:23:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/exception_ptr.h:95:30: error: field 'nullptr_t' has incomplete type 'std::__exception_ptr::exception_ptr'
exception_ptr(nullptr_t) noexcept
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/exception_ptr.h:95:30: error: expected ';' at end of member declaration
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/exception_ptr.h:95:32: error: expected unqualified-id before 'noexcept'
exception_ptr(nullptr_t) noexcept
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:62:0,
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_35896456_19737.cpp:23:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ext/type_traits.h:160:35: error: '__gnu_cxx::__is_null_pointer' declared as an 'inline' variable
__is_null_pointer(std::nullptr_t)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ext/type_traits.h:160:35: error: 'bool __gnu_cxx::__is_null_pointer' redeclared as different kind of symbol
GCC4.9.2/x86_64-w64-mingw32/include/c++/ext/type_traits.h:155:5: note: previous declaration 'template<class _Type> bool __gnu_cxx::__is_null_pointer(_Type)'
__is_null_pointer(_Type)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ext/type_traits.h:160:21: error: 'nullptr_t' is not a member of 'std'
__is_null_pointer(std::nullptr_t)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:57:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:64,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from D:/
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