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0_0_37050091_4549.cpp
0_0_37050091_4549.cpp(6) : error C2027: 使用了未定义类型“std::basic_ios<char,std::char_traits<char>>”
0_0_37050091_4549.cpp(6) : error C3861: “sync_with_stdio”:  找不到标识符
0_0_37050091_4549.cpp(8) : error C2065: “cin”: 未声明的标识符
0_0_37050091_4549.cpp(14) : error C2065: “cin”: 未声明的标识符
0_0_37050091_4549.cpp(24) : error C2065: “cout”: 未声明的标识符