Language: C++

#include <bits/stdc++.h>
using namespace std;

bool is_Palindrome(string s){
	string t(s.rbegin(), s.rend());
	return s==t;
}

int main(){
	string s;
	cin>>s;
	int n=s.size();
	if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
	cout<<"Yes\n";
	else cout<<"No\n";
}
























Compiler output:
a.cc: In function 'int main()':
a.cc:13:66: error: no match for 'operator&&' (operand types are 'std::__cxx11::basic_string<char>' and 'bool')
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                              ~~~~~~~~~~~~~~~~~~~ ^~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                      |                           |
      |                                                      |                           bool
      |                                                      std::__cxx11::basic_string<char>
a.cc:13:66: note: candidate: 'operator&&(bool, bool)' (built-in)
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                              ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:13:66: note:   no known conversion for argument 1 from 'std::__cxx11::basic_string<char>' to 'bool'
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:415:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const _Expr<_Dom1, typename _Dom1::value_type>&, const _Expr<_Dom2, typename _Dom2::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, struct std::__logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
a.cc:13:100: note:   'std::__cxx11::basic_string<char>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                                                                                    ^
/usr/include/c++/14/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const _Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, struct std::__logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
a.cc:13:100: note:   'std::__cxx11::basic_string<char>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                                                                                    ^
/usr/include/c++/14/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const typename _Dom::value_type&, const _Expr<_Dom1, typename _Dom1::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, struct std::__logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
a.cc:13:100: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'bool'
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                                                                                    ^
/usr/include/c++/14/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const _Expr<_Dom1, typename _Dom1::value_type>&, const valarray<typename _Dom::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, struct std::__logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
a.cc:13:100: note:   'std::__cxx11::basic_string<char>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                                                                                    ^
/usr/include/c++/14/bits/valarray_after.h:415:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__logical_and, typename _Dom1::value_type>::result_type> std::operator&&(const valarray<typename _Dom::value_type>&, const _Expr<_Dom1, typename _Dom1::value_type>&)'
  415 |     _DEFINE_EXPR_BINARY_OPERATOR(&&, struct std::__logical_and)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:415:5: note:   template argument deduction/substitution failed:
a.cc:13:100: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'bool'
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                                                                                    ^
/usr/include/c++/14/valarray:1206:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__logical_and, _Tp>::result_type> std::operator&&(const valarray<_Tp>&, const valarray<_Tp>&)'
 1206 | _DEFINE_BINARY_OPERATOR(&&, __logical_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/valarray:1206:1: note:   template argument deduction/substitution failed:
a.cc:13:100: note:   'std::__cxx11::basic_string<char>' is not derived from 'const std::valarray<_Tp>'
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                                                                                    ^
/usr/include/c++/14/valarray:1206:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__logical_and, _Tp>::result_type> std::operator&&(const valarray<_Tp>&, const typename valarray<_Tp>::value_type&)'
 1206 | _DEFINE_BINARY_OPERATOR(&&, __logical_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/valarray:1206:1: note:   template argument deduction/substitution failed:
a.cc:13:100: note:   'std::__cxx11::basic_string<char>' is not derived from 'const std::valarray<_Tp>'
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                                                                                    ^
/usr/include/c++/14/valarray:1206:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__logical_and, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__logical_and, _Tp>::result_type> std::operator&&(const typename valarray<_Tp>::value_type&, const valarray<_Tp>&)'
 1206 | _DEFINE_BINARY_OPERATOR(&&, __logical_and)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/valarray:1206:1: note:   template argument deduction/substitution failed:
a.cc:13:100: note:   mismatched types 'const std::valarray<_Tp>' and 'bool'
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |                                                                                                    ^
a.cc:13:101: error: expected ')' before ';' token
   13 |         if(is_Palindrome(s) && is_Palindrome(s.substr(0,(n-1)/2) && is_Palindrome(s.substr((n+1)/2));
      |           ~                                                                                         ^
      |                                                                                                     )
a.cc:15:9: error: 'else' without a previous 'if'
   15 |         else cout<<"No\n";
      |         ^~~~