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View Compilation Error

0_0_33861626_27804.cpp: In function 'int main()':
0_0_33861626_27804.cpp:61:29: error: no matching function for call to '__gcd(int, long long int&)'
         ll o=1ll*x/__gcd(8,x)*9,w=phi(o),ans=w;
                             ^
0_0_33861626_27804.cpp:61:29: note: candidate is:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from 0_0_33861626_27804.cpp:12:
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_33861626_27804.cpp:61:29: note:   deduced conflicting types for parameter '_EuclideanRingElement' ('int' and 'long long int')
         ll o=1ll*x/__gcd(8,x)*9,w=phi(o),ans=w;
                             ^
0_0_33861626_27804.cpp:64:29: error: 'w' was not declared in this scope
             for(ll i=1;i*i<=w;++i)
                             ^
0_0_33861626_27804.cpp:66:76: error: 'ans' was not declared in this scope
                     if(qkpow(10,i,o)==1){printf("Case %lld: %lld\n",++t,i);ans=0;break;}
                                                                            ^
0_0_33861626_27804.cpp:67:43: error: 'ans' was not declared in this scope
                     if(qkpow(10,w/i,o)==1)ans=i;
                                           ^
0_0_33861626_27804.cpp:69:16: error: 'ans' was not declared in this scope
             if(ans)printf("Case %lld: %lld\n",++t,ans);
                ^


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