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View Compilation Error

0_0_5889103_7930.cpp
0_0_5889103_7930.cpp(3) : error C2871: “std” : 具有该名称的命名空间不存在
0_0_5889103_7930.cpp(9) : 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“(unsigned int)”时
0_0_5889103_7930.cpp(10) : 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“(unsigned int)”时
0_0_5889103_7930.cpp(15) : error C2668: “abs” : 对重载函数的调用不明确
        VC\include\math.h(584): 可能是“long double abs(long double)”
        VC\include\math.h(536): 或       “float abs(float)”
        VC\include\math.h(530): 或       “double abs(double)”
        VC\include\math.h(528): 或       “long abs(long)”
        VC\include\math.h(182): 或       “int abs(int)”
        试图匹配参数列表“(unsigned int)”时
0_0_5889103_7930.cpp(15) : error C2668: “abs” : 对重载函数的调用不明确
        VC\include\math.h(584): 可能是“long double abs(long double)”
        VC\include\math.h(536): 或       “float abs(float)”
        VC\include\math.h(530): 或       “double abs(double)”
        VC\include\math.h(528): 或       “long abs(long)”
        VC\include\math.h(182): 或       “int abs(int)”
        试图匹配参数列表“(unsigned int)”时
0_0_5889103_7930.cpp(15) : error C2668: “abs” : 对重载函数的调用不明确
        VC\include\math.h(584): 可能是“long double abs(long double)”
        VC\include\math.h(536): 或       “float abs(float)”
        VC\include\math.h(530): 或       “double abs(double)”
        VC\include\math.h(528): 或       “long abs(long)”
        VC\include\math.h(182): 或       “int abs(int)”
        试图匹配参数列表“(unsigned int)”时
0_0_5889103_7930.cpp(17) : error C2562: “main” : “void”函数返回值
        0_0_5889103_7930.cpp(4) : 参见“main”的声明


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