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View Compilation Error

0_0_14974904_17049.cpp
0_0_14974904_17049.cpp(17) : error C2758: “Graph::V”: 必须初始化引用类型的成员
        0_0_14974904_17049.cpp(26) : 参见“Graph::V”的声明
0_0_14974904_17049.cpp(18) : error C2758: “Graph::V”: 必须初始化引用类型的成员
        0_0_14974904_17049.cpp(26) : 参见“Graph::V”的声明
0_0_14974904_17049.cpp(19) : error C2679: 二进制“=”: 没有找到接受“std::vector<int,std::allocator<_Ty>> *”类型的右操作数的运算符(或没有可接受的转换)
        with
        [
            _Ty=int
        ]
        VC2013\INCLUDE\vector(948): 可能是“std::vector<int,std::allocator<_Ty>> &std::vector<_Ty,std::allocator<_Ty>>::operator =(const std::vector<_Ty,std::allocator<_Ty>> &)”
        with
        [
            _Ty=int
        ]
        VC2013\INCLUDE\vector(926): 或       “std::vector<int,std::allocator<_Ty>> &std::vector<_Ty,std::allocator<_Ty>>::operator =(std::initializer_list<int>)”
        with
        [
            _Ty=int
        ]
        VC2013\INCLUDE\vector(822): 或       “std::vector<int,std::allocator<_Ty>> &std::vector<_Ty,std::allocator<_Ty>>::operator =(std::vector<_Ty,std::allocator<_Ty>> &&)”
        with
        [
            _Ty=int
        ]
        尝试匹配参数列表“(std::vector<int,std::allocator<_Ty>>, std::vector<int,std::allocator<_Ty>> *)”时
        with
        [
            _Ty=int
        ]
0_0_14974904_17049.cpp(23) : error C2440: “delete”: 无法从“std::vector<int,std::allocator<_Ty>>”转换为“void*”
        with
        [
            _Ty=int
        ]
        没有可用于执行该转换的用户定义的转换运算符,或者无法调用该运算符


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