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View Compilation Error

0_0_2133893_7349.cpp
0_0_2133893_7349.cpp(47) : error C2668: “sqrt” : 对重载函数的调用不明确
        VC\include\math.h(626): 可能是“long double sqrt(long double)”
        VC\include\math.h(578): 或       “float sqrt(float)”
        VC\include\math.h(200): 或       “double sqrt(double)”
        试图匹配参数列表“(int)”时


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