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View Compilation Error

0_0_38907224_3343.cpp
0_0_38907224_3343.cpp(63) : error C3551: 应提供结尾返回类型
0_0_38907224_3343.cpp(65) : error C2440: “return”: 无法从“std::_Tree_const_iterator<std::_Tree_val<std::_Tree_simple_types<CT>>>”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_38907224_3343.cpp(68) : error C2440: “return”: 无法从“std::_Tree_const_iterator<std::_Tree_val<std::_Tree_simple_types<CT>>>”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_38907224_3343.cpp(73) : error C2664: “unsigned int std::_Tree<std::_Tset_traits<_Kty,_Pr,_Alloc,false>>::erase(const CT &)”: 无法将参数 1 从“int”转换为“std::_Tree_const_iterator<std::_Tree_val<std::_Tree_simple_types<CT>>>”
        with
        [
            _Kty=CT
,            _Pr=std::less<CT>
,            _Alloc=std::allocator<CT>
        ]
        无构造函数可以接受源类型,或构造函数重载决策不明确
0_0_38907224_3343.cpp(81) : error C2227: “->ans”的左边必须指向类/结构/联合/泛型类型
        类型是“int”
0_0_38907224_3343.cpp(81) : error C2227: “->l”的左边必须指向类/结构/联合/泛型类型
        类型是“int”
0_0_38907224_3343.cpp(81) : error C2227: “->r”的左边必须指向类/结构/联合/泛型类型
        类型是“int”
0_0_38907224_3343.cpp(81) : error C2227: “->v”的左边必须指向类/结构/联合/泛型类型
        类型是“int”
0_0_38907224_3343.cpp(81) : error C2660: “Count::count”: 函数不接受 1 个参数
0_0_38907224_3343.cpp(82) : error C2227: “->ans”的左边必须指向类/结构/联合/泛型类型
        类型是“int”


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