0_0_35886176_4269.cpp 0_0_35886176_4269.cpp(170) : error C3861: “__gcd”: 找不到标识符 0_0_35886176_4269.cpp(172) : error C3861: “__gcd”: 找不到标识符 0_0_35886176_4269.cpp(174) : error C3861: “__gcd”: 找不到标识符