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0_0_26779465_19176.cpp
0_0_26779465_19176.cpp(14) : error C2668: “fabs”: 对重载函数的调用不明确
        VC2013\INCLUDE\math.h(1181): 可能是“long double fabs(long double) throw()”
        VC2013\INCLUDE\math.h(1065): 或       “float fabs(float) throw()”
        VC2013\INCLUDE\math.h(491): 或       “double fabs(double)”
        尝试匹配参数列表“(int)”时
0_0_26779465_19176.cpp(26) : error C2872: “count”: 不明确的符号
        可能是“0_0_26779465_19176.cpp(7) : int count”
        或       “VC2013\INCLUDE\xutility(3086) : iterator_traits<_Iter>::difference_type std::count(_InIt,_InIt,const _Ty &)”
0_0_26779465_19176.cpp(41) : error C2872: “count”: 不明确的符号
        可能是“0_0_26779465_19176.cpp(7) : int count”
        或       “VC2013\INCLUDE\xutility(3086) : iterator_traits<_Iter>::difference_type std::count(_InIt,_InIt,const _Ty &)”
0_0_26779465_19176.cpp(43) : error C2872: “count”: 不明确的符号
        可能是“0_0_26779465_19176.cpp(7) : int count”
        或       “VC2013\INCLUDE\xutility(3086) : iterator_traits<_Iter>::difference_type std::count(_InIt,_InIt,const _Ty &)”