0_0_19395472_3689.cpp:8:8: error: macro names must be identifiers
#define?maxn?2000??
^
0_0_19395472_3689.cpp:9:8: error: macro names must be identifiers
#define?INF?0xfffffff??
^
0_0_19395472_3689.cpp:10:8: error: macro names must be identifiers
#define?MS(a,b)?memset(a,b,sizeof(a));??
^
0_0_19395472_3689.cpp:120:1: error: stray '\' in program
?????return?0;??////
^
0_0_19395472_3689.cpp:5:6: error: expected nested-name-specifier before '?' token
using?namespace?std;??
^
0_0_19395472_3689.cpp:5:21: error: expected unqualified-id before '?' token
using?namespace?std;??
^
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