/in/foo.cc: In function 'int main()':
/in/foo.cc:10:39: error: no matching function for call to 'abs(int&, int&)'
   10 |         for(int i=1;i<=n;i++) cnt+=abs(m[i],w[i]);
      |                                    ~~~^~~~~~~~~~~
In file included from /usr/include/c++/12/valarray:603,
                 from /usr/include/x86_64-linux-gnu/c++/12/bits/stdc++.h:95,
                 from /in/foo.cc:1:
/usr/include/c++/12/bits/valarray_after.h:445:5: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_UnClos<std::_Abs, std::_ValArray, _Tp>, _Tp> std::abs(const valarray<_Tp>&)'
  445 |     _DEFINE_EXPR_UNARY_FUNCTION(abs, struct std::_Abs)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/12/bits/valarray_after.h:445:5: note:   template argument deduction/substitution failed:
/in/foo.cc:10:39: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
   10 |         for(int i=1;i<=n;i++) cnt+=abs(m[i],w[i]);
      |                                    ~~~^~~~~~~~~~~
/usr/include/c++/12/bits/valarray_after.h:445:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_UnClos<std::_Abs, std::_Expr, _Dom>, typename _Dom::value_type> std::abs(const _Expr<_Dom1, typename _Dom1::value_type>&)'
  445 |     _DEFINE_EXPR_UNARY_FUNCTION(abs, struct std::_Abs)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/12/bits/valarray_after.h:445:5: note:   template argument deduction/substitution failed:
/in/foo.cc:10:39: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
   10 |         for(int i=1;i<=n;i++) cnt+=abs(m[i],w[i]);
      |                                    ~~~^~~~~~~~~~~
In file included from /usr/include/c++/12/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/12/bits/stdc++.h:54:
/usr/include/c++/12/complex:626:5: note: candidate: 'template<class _Tp> _Tp std::abs(const complex<_Tp>&)'
  626 |     abs(const complex<_Tp>& __z) { return __complex_abs(__z.__rep()); }
      |     ^~~
/usr/include/c++/12/complex:626:5: note:   template argument deduction/substitution failed:
/in/foo.cc:10:39: note:   mismatched types 'const std::complex<_Tp>' and 'int'
   10 |         for(int i=1;i<=n;i++) cnt+=abs(m[i],w[i]);
      |                                    ~~~^~~~~~~~~~~
In file included from /usr/include/c++/12/bits/std_abs.h:38,
                 from /usr/include/c++/12/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/12/bits/stdc++.h:41:
/usr/include/stdlib.h:861:12: note: candidate: 'int abs(int)'
  861 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
/usr/include/stdlib.h:861:12: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/12/bits/std_abs.h:79:3: note: candidate: 'constexpr long double std::abs(long double)'
   79 |   abs(long double __x)
      |   ^~~
/usr/include/c++/12/bits/std_abs.h:79:3: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/12/bits/std_abs.h:75:3: note: candidate: 'constexpr float std::abs(float)'
   75 |   abs(float __x)
      |   ^~~
/usr/include/c++/12/bits/std_abs.h:75:3: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/12/bits/std_abs.h:71:3: note: candidate: 'constexpr double std::abs(double)'
   71 |   abs(double __x)
      |   ^~~
/usr/include/c++/12/bits/std_abs.h:71:3: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/12/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++/12/bits/std_abs.h:61:3: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/12/bits/std_abs.h:56:3: note: candidate: 'long int std::abs(long int)'
   56 |   abs(long __i) { return __builtin_labs(__i); }
      |   ^~~
/usr/include/c++/12/bits/std_abs.h:56:3: note:   candidate expects 1 argument, 2 provided