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View Compilation Error

0_0_39420875_22296.cpp
0_0_39420875_22296.cpp(48) : error C3551: 应提供结尾返回类型
0_0_39420875_22296.cpp(50) : error C2440: “return”: 无法从“std::_Tree_const_iterator<std::_Tree_val<std::_Tree_simple_types<int>>>”转换为“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
0_0_39420875_22296.cpp(52) : error C2440: “return”: 无法从“std::_Tree_const_iterator<std::_Tree_val<std::_Tree_simple_types<int>>>”转换为“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
0_0_39420875_22296.cpp(80) : error C2100: 非法的间接寻址
0_0_39420875_22296.cpp(81) : error C2664: “unsigned int std::_Tree<std::_Tset_traits<_Kty,_Pr,_Alloc,false>>::erase(const int &)”: 无法将参数 1 从“int”转换为“std::_Tree_const_iterator<std::_Tree_val<std::_Tree_simple_types<int>>>”
        with
        [
            _Kty=int
,            _Pr=std::less<int>
,            _Alloc=std::allocator<int>
        ]
        无构造函数可以接受源类型,或构造函数重载决策不明确


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