answer.code: In function ‘Line<__float128> shift(const Line<__int128>&, const Point<__float128>&)’:
answer.code:611:15: warning: narrowing conversion of ‘(__int128)l.Line<__int128>::A’ from ‘__int128’ to ‘__float128’ [-Wnarrowing]
  611 |     return {l.A, l.B, l.C - l.A * p.x - l.B * p.y};
      |             ~~^
answer.code:611:20: warning: narrowing conversion of ‘(__int128)l.Line<__int128>::B’ from ‘__int128’ to ‘__float128’ [-Wnarrowing]
  611 |     return {l.A, l.B, l.C - l.A * p.x - l.B * p.y};
      |                  ~~^
answer.code: In function ‘Real get_dist(const Point<T2>&, const Segment<T2>&)’:
answer.code:840:19: error: call of overloaded ‘abs(Real&)’ is ambiguous
  840 |         return abs(len);
      |                ~~~^~~~~
In file included from /usr/include/c++/11/bits/std_abs.h:38,
                 from /usr/include/c++/11/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from answer.code:5:
/usr/include/stdlib.h:840:12: note: candidate: ‘int abs(int)’
  840 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
In file included from /usr/include/c++/11/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from answer.code:5:
/usr/include/c++/11/bits/std_abs.h:79:3: note: candidate: ‘constexpr long double std::abs(long double)’
   79 |   abs(long double __x)
      |   ^~~
/usr/include/c++/11/bits/std_abs.h:75:3: note: candidate: ‘constexpr float std::abs(float)’
   75 |   abs(float __x)
      |   ^~~
/usr/include/c++/11/bits/std_abs.h:71:3: note: candidate: ‘constexpr double std::abs(double)’
   71 |   abs(double __x)
      |   ^~~
/usr/include/c++/11/bits/std_abs.h:61:3: note: candidate: ‘long long int std::abs(long long int)’
   61 |   abs(long long __x) { return __builtin_llabs (__x); }
      |   ^~~
/usr/include/c++/11/bits/std_abs.h:56:3: note: candidate: ‘long int std::abs(long int)’
   56 |   abs(long __i) { return __builtin_labs(__i); }
      |   ^~~
answer.code:36:10: note: candidate: ‘__int128 abs(__int128)’
   36 | __int128 abs(__int128 x) {
      |          ^~~
In file included from /usr/include/c++/11/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:33,
                 from answer.code:5:
answer.code: In function ‘bool eval(int, const Point<__float128>&)’:
answer.code:1263:19: error: call of overloaded ‘abs(Real&)’ is ambiguous
 1263 |         assert(abs(val) >= 1e-4);
      |                ~~~^~~~~
In file included from /usr/include/c++/11/bits/std_abs.h:38,
                 from /usr/include/c++/11/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from answer.code:5:
/usr/include/stdlib.h:840:12: note: candidate: ‘int abs(int)’
  840 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
In file included from /usr/include/c++/11/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from answer.code:5:
/usr/include/c++/11/bits/std_abs.h:79:3: note: candidate: ‘constexpr long double std::abs(long double)’
   79 |   abs(long double __x)
      |   ^~~
/usr/include/c++/11/bits/std_abs.h:75:3: note: candidate: ‘constexpr float std::abs(float)’
   75 |   abs(float __x)
      |   ^~~
/usr/include/c++/11/bits/std_abs.h:71:3: note: candidate: ‘constexpr double std::abs(double)’
   71 |   abs(double __x)
      |   ^~~
/usr/include/c++/11/bits/std_abs.h:61:3: note: candidate: ‘long long int std::abs(long long int)’
   61 |   abs(long long __x) { return __builtin_llabs (__x); }
      |   ^~~
/usr/include/c++/11/bits/std_abs.h:56:3: note: candidate: ‘long int std::abs(long int)’
   56 |   abs(long __i) { return __builtin_labs(__i); }
      |   ^~~
answer.code:36:10: note: candidate: ‘__int128 abs(__int128)’
   36 | __int128 abs(__int128 x) {
      |          ^~~
answer.code: In instantiation of ‘T get_doubled_area(const std::vector<Point<T2> >&) [with T = __float128]’:
answer.code:812:28:   required from ‘Real get_area(const std::vector<Point<T2> >&) [with T = __float128; Real = __float128]’
answer.code:1363:28:   required from here
answer.code:807:15: error: call of overloaded ‘abs(__float128)’ is ambiguous
  807 |     return abs(get_doubled_oriented_area(a));
      |            ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/std_abs.h:38,
                 from /usr/include/c++/11/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from answer.code:5:
/usr/include/stdlib.h:840:12: note: candidate: ‘int abs(int)’
  840 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
In file included from /usr/include/c++/11/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from answer.code:5:
/usr/include/c...