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View Compilation Error

0_0_7124820_30323.cpp
0_0_7124820_30323.cpp(89) : error C2440: “初始化” : 无法从“std::_Tree<_Traits>::iterator”转换为“std::_Tree<_Traits>::iterator”
        with
        [
            _Traits=std::_Tset_traits<std::pair<int,int>,cmp,std::allocator<pii>,false>
        ]
        and
        [
            _Traits=std::_Tset_traits<pii,std::less<pii>,std::allocator<pii>,false>
        ]
        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_7124820_30323.cpp(90) : error C2679: 二进制“!=” : 没有找到接受“<未知>”类型的右操作数的运算符(或没有可接受的转换)


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