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0_0_20650567_21295.cpp:1:1: error: expected unqualified-id before '<' token
 <pre name="code" class="cpp"><pre name="code" class="cpp">//比赛中自己少考虑一种情况,下面参考大牛的思路。上自己的代码。
 ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/_mingw.h:282:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/crtdefs.h:10,
                 from GCC4.9.2/x86_64-w64-mingw32/include/stdio.h:9,
                 from 0_0_20650567_21295.cpp:14:
GCC4.9.2/x86_64-w64-mingw32/include/vadefs.h:12:32: error: expected declaration before end of line
 #pragma pack(push,_CRT_PACKING)
                                ^