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View Compilation Error

0_0_22335859_15335.cpp: In function 'int main()':
0_0_22335859_15335.cpp:42:44: error: no matching function for call to '__gcd(ll&, const int&)'
                 int  x=__gcd(a[i],it->first);
                                            ^
0_0_22335859_15335.cpp:42:44: note: candidate is:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:64,
                 from 0_0_22335859_15335.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:1229:5: note: template<class _EuclideanRingElement> _EuclideanRingElement std::__gcd(_EuclideanRingElement, _EuclideanRingElement)
     __gcd(_EuclideanRingElement __m, _EuclideanRingElement __n)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:1229:5: note:   template argument deduction/substitution failed:
0_0_22335859_15335.cpp:42:44: note:   deduced conflicting types for parameter '_EuclideanRingElement' ('long long int' and 'int')
                 int  x=__gcd(a[i],it->first);
                                            ^


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