printer.cpp: In instantiation of 'main()::<lambda(auto:23&, auto:24&)> [with auto:23 = std::__cxx11::basic_string<char>; auto:24 = std::__cxx11::basic_string<char>]':
/usr/include/c++/10/bits/predefined_ops.h:156:30: required from 'constexpr bool __gnu_cxx::__ops::_Iter_comp_iter<_Compare>::operator()(_Iterator1, _Iterator2) [with _Iterator1 = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Iterator2 = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Compare = main()::<lambda(auto:23&, auto:24&)>]'
/usr/include/c++/10/bits/stl_algo.h:82:17: required from 'void std::__move_median_to_first(_Iterator, _Iterator, _Iterator, _Iterator, _Compare) [with _Iterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<main()::<lambda(auto:23&, auto:24&)> >]'
/usr/include/c++/10/bits/stl_algo.h:1924:34: required from '_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<main()::<lambda(auto:23&, auto:24&)> >]'
/usr/include/c++/10/bits/stl_algo.h:1958:38: required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<main()::<lambda(auto:23&, auto:24&)> >]'
/usr/include/c++/10/bits/stl_algo.h:1974:25: required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<main()::<lambda(auto:23&, auto:24&)> >]'
/usr/include/c++/10/bits/stl_algo.h:4892:18: required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >; _Compare = main()::<lambda(auto:23&, auto:24&)>]'
printer.cpp:17:6: required from here
printer.cpp:13:27: error: call of overloaded 'abs(std::__cxx11::basic_string<char>::size_type)' is ambiguous
13 | if (x.substr(0,abs(x.size()-y.size())) == y.substr(0,abs(x.size()-y.size()))) {
| ~~~^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/bits/std_abs.h:38,
from /usr/include/c++/10/cmath:47,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from printer.cpp:1:
/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++/10/cmath:47,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from printer.cpp:1:
/usr/include/c++/10/bits/std_abs.h:79:3: note: candidate: 'constexpr long double std::abs(long double)'
79 | abs(long double __x)
| ^~~
/usr/include/c++/10/bits/std_abs.h:75:3: note: candidate: 'constexpr float std::abs(float)'
75 | abs(float __x)
| ^~~
/usr/include/c++/10/bits/std_abs.h:71:3: note: candidate: 'constexpr double std::abs(double)'
71 | abs(double __x)
| ^~~
/usr/include/c++/10/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++/10/bits/std_abs.h:56:3: note: candidate: 'long int std::abs(long int)'
56 | abs(long __i) { return __builtin_labs(__i); }
| ^~~
printer.cpp:13:65: error: call of overloaded 'abs(std::__cxx11::basic_string<char>::size_type)' is ambiguous
13 | if (x.substr(0,abs(x.size()-y.size())) == y.substr(0,abs(x.size()-y.size()))) {
| ~~~^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/bits/std_abs.h:38,
from /usr/include/c++/10/cmath:47,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from printer.cpp:1:
/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++/10/cmath:47,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from printer.cpp:1:
/usr/include/c++/10/bits/std_abs.h:79:3: note: candidate: 'constexpr long double std::abs(long double)'
79 | abs(long double __x)
| ^~~
/usr/include/c++/10/bits/std_abs.h:75:3: note: candidate: 'constexpr float std::abs(float)'
75 | abs(float __x)
| ^~~
/usr/include/c++/10/bits/std_abs.h:71:3: note: candidate: 'constexpr double std::abs(double)'
71 | abs(double __x)
| ^~~
/usr/include/c++/10/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++/10/bits/std_abs.h:56:3: note: candidate: 'long int std::abs(long int)'
56 | abs(long __i) { return __builtin_labs(__i); }
| ^~~