运行 ID: 28617

In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from Main.cc:1:
/usr/include/c++/7/bits/stl_algo.h: In instantiation of ‘void std::shuffle(_RAIter, _RAIter, _UGenerator&&) [with _RAIter = nd*; _UGenerator = unsigned int&]’:
Main.cc:33:27:   required from here
/usr/include/c++/7/bits/stl_algo.h:3813:2: error: ‘std::remove_reference::type {aka unsigned int}’ is not a class, struct, or union type
  __uc_type;
  ^~~~~~~~~
/usr/include/c++/7/bits/stl_algo.h:3841:37: error: ‘std::remove_reference::type {aka unsigned int}’ is not a class, struct, or union type
    const pair<__uc_type, __uc_type> __pospos =
                                     ^~~~~~~~
/usr/include/c++/7/bits/stl_algo.h:3841:37: error: ‘std::remove_reference::type {aka unsigned int}’ is not a class, struct, or union type