Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int N,D;
  cin>>N>>D;
  vector<vector<int>>X(N,vector<int>(D));
  for(int i=0;i<N;i++){
    for(int j=0;j<D;j++)cin>>X[i][j];
  }
  
  vector<vector<double>>Dis(N,vector<double>(N));
  for(int i=0;i<N;i++){
    for(int j=0;j<N;j++){
      int s=0;
      for(int k=0;k<D;k++){
        s+=pow(X[i][k]-X[j][k],2);
      }
      Dis[i][j]=s;
    }
  }
 　int x=0;
  for(int i=0;i<N;i++){
	for(int j=0;j<N;j++){
      if(Dis[i][j]!=0){
        int root=sqrt(Dis[i][j]);
        if(root==sqrt(Dis[i][j]){
          x++;
       }
           }
           }
           }
           cout<<X/2<<endl;
           }

Compiler output:
a.cc:21:2: error: extended character 　 is not valid in an identifier
   21 |  　int x=0;
      |  ^
a.cc: In function 'int main()':
a.cc:21:2: error: '\U00003000int' was not declared in this scope
   21 |  　int x=0;
      |  ^~~~~
a.cc:26:33: error: expected ')' before '{' token
   26 |         if(root==sqrt(Dis[i][j]){
      |           ~                     ^
      |                                 )
a.cc:29:12: error: expected primary-expression before '}' token
   29 |            }
      |            ^
a.cc:32:19: error: no match for 'operator/' (operand types are 'std::vector<std::vector<int> >' and 'int')
   32 |            cout<<X/2<<endl;
      |                  ~^~
      |                  | |
      |                  | int
      |                  std::vector<std::vector<int> >
In file included from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127,
                 from a.cc:1:
/usr/include/c++/14/complex:430:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator/(const complex<_Tp>&, const complex<_Tp>&)'
  430 |     operator/(const complex<_Tp>& __x, const complex<_Tp>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/complex:430:5: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   'std::vector<std::vector<int> >' is not derived from 'const std::complex<_Tp>'
   32 |            cout<<X/2<<endl;
      |                    ^
/usr/include/c++/14/complex:439:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator/(const complex<_Tp>&, const _Tp&)'
  439 |     operator/(const complex<_Tp>& __x, const _Tp& __y)
      |     ^~~~~~~~
/usr/include/c++/14/complex:439:5: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   'std::vector<std::vector<int> >' is not derived from 'const std::complex<_Tp>'
   32 |            cout<<X/2<<endl;
      |                    ^
/usr/include/c++/14/complex:448:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator/(const _Tp&, const complex<_Tp>&)'
  448 |     operator/(const _Tp& __x, const complex<_Tp>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/complex:448:5: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   mismatched types 'const std::complex<_Tp>' and 'int'
   32 |            cout<<X/2<<endl;
      |                    ^
In file included from /usr/include/c++/14/valarray:605,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:166:
/usr/include/c++/14/bits/valarray_after.h:408:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__divides, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__divides, typename _Dom1::value_type>::result_type> std::operator/(const _Expr<_Dom1, typename _Dom1::value_type>&, const _Expr<_Dom2, typename _Dom2::value_type>&)'
  408 |     _DEFINE_EXPR_BINARY_OPERATOR(/, struct std::__divides)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:408:5: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   'std::vector<std::vector<int> >' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   32 |            cout<<X/2<<endl;
      |                    ^
/usr/include/c++/14/bits/valarray_after.h:408:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__divides, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__divides, typename _Dom1::value_type>::result_type> std::operator/(const _Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
  408 |     _DEFINE_EXPR_BINARY_OPERATOR(/, struct std::__divides)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:408:5: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   'std::vector<std::vector<int> >' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   32 |            cout<<X/2<<endl;
      |                    ^
/usr/include/c++/14/bits/valarray_after.h:408:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__divides, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__divides, typename _Dom1::value_type>::result_type> std::operator/(const typename _Dom::value_type&, const _Expr<_Dom1, typename _Dom1::value_type>&)'
  408 |     _DEFINE_EXPR_BINARY_OPERATOR(/, struct std::__divides)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:408:5: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
   32 |            cout<<X/2<<endl;
      |                    ^
/usr/include/c++/14/bits/valarray_after.h:408:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__divides, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__divides, typename _Dom1::value_type>::result_type> std::operator/(const _Expr<_Dom1, typename _Dom1::value_type>&, const valarray<typename _Dom::value_type>&)'
  408 |     _DEFINE_EXPR_BINARY_OPERATOR(/, struct std::__divides)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:408:5: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   'std::vector<std::vector<int> >' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
   32 |            cout<<X/2<<endl;
      |                    ^
/usr/include/c++/14/bits/valarray_after.h:408:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__divides, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__divides, typename _Dom1::value_type>::result_type> std::operator/(const valarray<typename _Dom::value_type>&, const _Expr<_Dom1, typename _Dom1::value_type>&)'
  408 |     _DEFINE_EXPR_BINARY_OPERATOR(/, struct std::__divides)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/valarray_after.h:408:5: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
   32 |            cout<<X/2<<endl;
      |                    ^
/usr/include/c++/14/valarray:1199:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__divides, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__divides, _Tp>::result_type> std::operator/(const valarray<_Tp>&, const valarray<_Tp>&)'
 1199 | _DEFINE_BINARY_OPERATOR(/, __divides)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/valarray:1199:1: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   'std::vector<std::vector<int> >' is not derived from 'const std::valarray<_Tp>'
   32 |            cout<<X/2<<endl;
      |                    ^
/usr/include/c++/14/valarray:1199:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__divides, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__divides, _Tp>::result_type> std::operator/(const valarray<_Tp>&, const typename valarray<_Tp>::value_type&)'
 1199 | _DEFINE_BINARY_OPERATOR(/, __divides)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/valarray:1199:1: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   'std::vector<std::vector<int> >' is not derived from 'const std::valarray<_Tp>'
   32 |            cout<<X/2<<endl;
      |                    ^
/usr/include/c++/14/valarray:1199:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__divides, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__divides, _Tp>::result_type> std::operator/(const typename valarray<_Tp>::value_type&, const valarray<_Tp>&)'
 1199 | _DEFINE_BINARY_OPERATOR(/, __divides)
      | ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/valarray:1199:1: note:   template argument deduction/substitution failed:
a.cc:32:20: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
   32 |            cout<<X/2<<endl;
      |                    ^