Language: C++

#include<bits/stdc++.h>

using namespace std;

int main()
{
    string a,b,c;
    int x;
    cin>>a,b;
    c=a+b;
    int c=stoi(a+b);
    x=sqrt(c);
    if(c-(x*x)==0)
    {
        cout<<"Yes\n";
    }
    else
    {
        cout<<"No\n";
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: conflicting declaration 'int c'
   11 |     int c=stoi(a+b);
      |         ^
a.cc:7:16: note: previous declaration as 'std::string c'
    7 |     string a,b,c;
      |                ^
a.cc:12:11: error: no matching function for call to 'sqrt(std::string&)'
   12 |     x=sqrt(c);
      |       ~~~~^~~
In file included from /usr/include/c++/14/valarray:605,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:166,
                 from a.cc:1:
/usr/include/c++/14/bits/valarray_after.h:458:5: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_UnClos<std::_Sqrt, std::_ValArray, _Tp>, _Tp> std::sqrt(const valarray<_Tp>&)'
  458 |     _DEFINE_EXPR_UNARY_FUNCTION(sqrt, struct std::_Sqrt)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:458:5: note:   template argument deduction/substitution failed:
a.cc:12:11: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::valarray<_Tp>'
   12 |     x=sqrt(c);
      |       ~~~~^~~
/usr/include/c++/14/bits/valarray_after.h:458:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_UnClos<std::_Sqrt, std::_Expr, _Dom>, typename _Dom::value_type> std::sqrt(const _Expr<_Dom1, typename _Dom1::value_type>&)'
  458 |     _DEFINE_EXPR_UNARY_FUNCTION(sqrt, struct std::_Sqrt)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:458:5: note:   template argument deduction/substitution failed:
a.cc:12:11: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   12 |     x=sqrt(c);
      |       ~~~~^~~
In file included from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/complex:1195:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::sqrt(const complex<_Tp>&)'
 1195 |     sqrt(const complex<_Tp>& __z) { return __complex_sqrt(__z.__rep()); }
      |     ^~~~
/usr/include/c++/14/complex:1195:5: note:   template argument deduction/substitution failed:
a.cc:12:11: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::complex<_Tp>'
   12 |     x=sqrt(c);
      |       ~~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:114:
/usr/include/c++/14/cmath:454:5: note: candidate: 'template<class _Tp> constexpr typename __gnu_cxx::__enable_if<std::__is_integer<_Tp>::__value, double>::__type std::sqrt(_Tp)'
  454 |     sqrt(_Tp __x)
      |     ^~~~
/usr/include/c++/14/cmath:454:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/cmath: In substitution of 'template<class _Tp> constexpr typename __gnu_cxx::__enable_if<std::__is_integer<_Tp>::__value, double>::__type std::sqrt(_Tp) [with _Tp = std::__cxx11::basic_string<char>]':
a.cc:12:11:   required from here
   12 |     x=sqrt(c);
      |       ~~~~^~~
/usr/include/c++/14/cmath:454:5: error: no type named '__type' in 'struct __gnu_cxx::__enable_if<false, double>'
  454 |     sqrt(_Tp __x)
      |     ^~~~
In file included from /usr/include/features.h:523,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/c++config.h:683,
                 from /usr/include/c++/14/cassert:43,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:33:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:176:1: note: candidate: 'double sqrt(double)'
  176 | __MATHCALL (sqrt,, (_Mdouble_ __x));
      | ^~~~~~~~~~
In file included from /usr/include/math.h:275,
                 from /usr/include/c++/14/cmath:47:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:176:1: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'double'
  176 | __MATHCALL (sqrt,, (_Mdouble_ __x));
      | ^
/usr/include/c++/14/cmath:446:3: note: candidate: 'constexpr long double std::sqrt(long double)'
  446 |   sqrt(long double __x)
      |   ^~~~
/usr/include/c++/14/cmath:446:20: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'long double'
  446 |   sqrt(long double __x)
      |        ~~~~~~~~~~~~^~~
/usr/include/c++/14/cmath:442:3: note: candidate: 'constexpr float std::sqrt(float)'
  442 |   sqrt(float __x)
      |   ^~~~
/usr/include/c++/14/cmath:442:14: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'float'
  442 |   sqrt(float __x)
      |        ~~~~~~^~~
a.cc:13:9: error: no match for 'operator-' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
   13 |     if(c-(x*x)==0)
      |        ~^~~~~~
      |        |   |
      |        |   int
      |        std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/bits/stl_algobase.h:67,
                 from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_iterator.h:618:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__y.base() - __x.base())) std::operator-(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  618 |     operator-(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:618:5: note:   template argument deduction/substitution failed:
a.cc:13:14: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   13 |     if(c-(x*x)==0)
      |              ^
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__x.base() - __y.base())) std::operator-(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1790 |     operator-(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note:   template argument deduction/substitution failed:
a.cc:13:14: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   13 |     if(c-(x*x)==0)
      |              ^
/usr/include/c++/14/complex:370:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator-(const complex<_Tp>&, const complex<_Tp>&)'
  370 |     operator-(const complex<_Tp>& __x, const complex<_Tp>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/complex:370:5: note:   template argument deduction/substitution failed:
a.cc:13:14: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::complex<_Tp>'
   13 |     if(c-(x*x)==0)
      |              ^
/usr/include/c++/14/complex:379:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator-(const complex<_Tp>&, const _Tp&)'
  379 |     operator-(const complex<_Tp>& __x, const _Tp& __y)
      |     ^~~~~~~~
/usr/include/c++/14/complex:379:5: note:   template argument deduction/substitution failed:
a.cc:13:14: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::complex<_Tp>'
   13 |     if(c-(x*x)==0)
      |              ^
/usr/include/c++/14/complex:388:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator-(const _Tp&, const complex<_Tp>&)'
  388 |     operator-(const _Tp& __x, const complex<_Tp>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/complex:388:5: note:   template argument deduction/substitution failed:
a.cc:13:14: note:   mismatched types 'const std::complex<_Tp>' and 'int'
   13 |     if(c-(x*x)==0)
      |              ^
/usr/include/c++/14/complex:465:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator-(const complex<_Tp>&)'
  465 |     operator-(const complex<_Tp>& __x)
      |     ^~~~~~~~
/usr/include/c++/14/complex:465:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/valarray_after.h:406:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__minus, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const _Expr<_Dom1, typename _Dom1::value_type>&, const _Expr<_Dom2, typename _Dom2::value_type>&)'
  406 |     _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note:   template argument deduction/substitution failed:
a.cc:13:14: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   13 |     if(c-(x*x)==0)
      |              ^
/usr/include/c++/14/bits/valarray_after.h:406:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__minus, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const _Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
  406 |     _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: note:   template argument deduction/substitution failed:
a.cc:13:14: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   13 |     if(c-(x*x)==0)
      |              ^
/usr/include/c++/14/bits/valarray_after.h:406:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__minus, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const typename _Dom::value_type&, const _Expr<_Dom1, typename _Dom1::value_type>&)'
  406 |     _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:406:5: no