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0_0_33771426_31733.cpp:2:1: error: stray '\327' in program
 HDU 2586 How far away?    LCA最近公共祖先模板题
 ^
0_0_33771426_31733.cpp:2:1: error: stray '\356' in program
0_0_33771426_31733.cpp:2:1: error: stray '\275' in program
0_0_33771426_31733.cpp:2:1: error: stray '\374' in program
0_0_33771426_31733.cpp:2:1: error: stray '\271' in program
0_0_33771426_31733.cpp:2:1: error: stray '\253' in program
0_0_33771426_31733.cpp:2:1: error: stray '\271' in program
0_0_33771426_31733.cpp:2:1: error: stray '\262' in program
0_0_33771426_31733.cpp:2:1: error: stray '\327' in program
0_0_33771426_31733.cpp:2:1: error: stray '\346' in program
0_0_33771426_31733.cpp:2:1: error: stray '\317' in program
0_0_33771426_31733.cpp:2:1: error: stray '\310' in program
0_0_33771426_31733.cpp:2:1: error: stray '\304' in program
0_0_33771426_31733.cpp:2:1: error: stray '\243' in program
0_0_33771426_31733.cpp:2:1: error: stray '\260' in program
0_0_33771426_31733.cpp:2:1: error: stray '\345' in program
0_0_33771426_31733.cpp:2:1: error: stray '\314' in program
0_0_33771426_31733.cpp:2:1: error: stray '\342' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
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 ^
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:3:1: error: stray '\241' in program
0_0_33771426_31733.cpp:3:1: error: stray '\252' in program
0_0_33771426_31733.cpp:1:5: error: found ':' in nested-name-specifier, expected '::'
 http://acm.hdu.edu.cn/showproblem.php?pid=2586
     ^
0_0_33771426_31733.cpp:1:1: error: 'http' does not name a type
 http://acm.hdu.edu.cn/showproblem.php?pid=2586
 ^
0_0_33771426_31733.cpp:4:24: error: expected declaration before end of line
 #pragma GCC optimize(2)
                        ^