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View Compilation Error

0_0_13704445_10509.cpp: In function 'int main()':
0_0_13704445_10509.cpp:100:29: error: no matching function for call to 'std::vector<int>::swap(std::vector<int>)'
    son[i].swap(vector<int>());
                             ^
0_0_13704445_10509.cpp:100:29: note: candidate is:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:64:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/random.h:34,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/random:49,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:66,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62,
                 from 0_0_13704445_10509.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_vector.h:1194:7: note: void std::vector<_Tp, _Alloc>::swap(std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]
       swap(vector& __x)
       ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_vector.h:1194:7: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::vector<int>&'


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