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View Compilation Error

0_0_29967686_31135.cpp: In function 'bool isprime(__int128)':
0_0_29967686_31135.cpp:83:24: error: call of overloaded 'sqrt(__int128&)' is ambiguous
     ll tmp = (ll)sqrt(x);
                        ^
0_0_29967686_31135.cpp:83:24: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/cmath:44:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:41,
                 from 0_0_29967686_31135.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/math.h:152:18: note: double sqrt(double)
   double __cdecl sqrt(double _X);
                  ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:41:0,
                 from 0_0_29967686_31135.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/cmath:486:3: note: constexpr long double std::sqrt(long double)
   sqrt(long double __x)
   ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/cmath:482:3: note: constexpr float std::sqrt(float)
   sqrt(float __x)
   ^
0_0_29967686_31135.cpp:84:29: error: expected ';' before ')' token
     for (__int128 i=2;i<=tmp);i++){
                             ^
0_0_29967686_31135.cpp:84:31: error: 'i' was not declared in this scope
     for (__int128 i=2;i<=tmp);i++){
                               ^
0_0_29967686_31135.cpp: In function 'int main()':
0_0_29967686_31135.cpp:104:38: error: 'pow_mod' was not declared in this scope
             res = res*pow_mod(x,p-2,p)%p;
                                      ^


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