Language: C++

#include <bits/stdc++.h>
#define MAX 10000
#define r(i,n) for(int i=0;i<n;i++)
using namespace std;
struct Node{int p,l,r;};
Node T[MAX];
int D[MAX],H[MAX];
void setDepth(int u,int d){
	if(u==-1)return;
	D[u]==d;
	setDepth(T[u].l,d+1);
	setDepth(T[u].r,d+1);
}
int setHeight(int u){
	int h1=0,h2=0;
	if(T[u].l!=-1)
	h1=setHeight(T[u].l)+1;
	if(T[u].r!=-1)
	h2=setHeight(T[u].r)+1;
	H[u]=(h1>h2?h1:h2);
	reutrn H[u];
}
int getsibling(int u){
	if(T[u].p==-1)return -1;
	if(T[T[u].p].l!=-1&&T[T[u].p].l!=u)
		return T[T[u].p].l;
	if(T[T[u].p].r!=-1&&T[T[u].p].r!=u)
		return T[T[u].p].r;
	return -1;
}
void print(int u){
	cout<<"node "<<u;
	cout<<": parent = "<<T[u].p;
	cout<<", sibling = "<<getsibling(u);
	int deg=0;
	if(T[u].l!=-1)deg++;
	if(T[]u.r!=-1)deg++;
	cout<<", degree = "<<deg;
	cout<<", depth = "<<D[u];
	cout<<", height = "<<H[u]<<", ";
	if(T[u].p==-1)cout<<"root";
	else if(deg==0)cout<<"leaf";
	else cout<<"internal node";
	cout<<endl;
}
int main(){
    int root;
	cin>>n;
	r(i,n)T[i].p=-1;
	r(i,n){
	  cin>>a>>b>>c;
	  T[a].l=b;
	  T[a].r=c;
	  if(b!=-1)T[b].p=a;
	  if(c!=-1)T[c].p=a;
	}
	r(i,n)if(T[i]==-1)root=i;
	setdepth(root,0);
	setHeight(root);
	r(i,n)print(i);
}

Compiler output:
a.cc: In function 'int setHeight(int)':
a.cc:21:9: error: 'reutrn' was not declared in this scope
   21 |         reutrn H[u];
      |         ^~~~~~
a.cc:22:1: warning: no return statement in function returning non-void [-Wreturn-type]
   22 | }
      | ^
a.cc: In function 'void print(int)':
a.cc:37:14: error: expected primary-expression before ']' token
   37 |         if(T[]u.r!=-1)deg++;
      |              ^
a.cc:37:15: error: expected ')' before 'u'
   37 |         if(T[]u.r!=-1)deg++;
      |           ~   ^
      |               )
a.cc: In function 'int main()':
a.cc:48:14: error: 'n' was not declared in this scope; did you mean 'yn'?
   48 |         cin>>n;
      |              ^
      |              yn
a.cc:51:16: error: 'a' was not declared in this scope
   51 |           cin>>a>>b>>c;
      |                ^
a.cc:51:19: error: 'b' was not declared in this scope
   51 |           cin>>a>>b>>c;
      |                   ^
a.cc:51:22: error: 'c' was not declared in this scope
   51 |           cin>>a>>b>>c;
      |                      ^
a.cc:57:22: error: no match for 'operator==' (operand types are 'Node' and 'int')
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                  ~~~~^~~~
      |                     |  |
      |                     |  int
      |                     Node
In file included from /usr/include/c++/14/regex:68,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:181,
                 from a.cc:1:
/usr/include/c++/14/bits/regex.h:1103:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator==(const sub_match<_BiIter>&, const sub_match<_BiIter>&)'
 1103 |     operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1103:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/regex.h:1199:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const sub_match<_BiIter>&)'
 1199 |     operator==(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1199:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/regex.h:1274:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(const sub_match<_BiIter>&, __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1274 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1274:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/regex.h:1366:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type*, const sub_match<_BiIter>&)'
 1366 |     operator==(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1366:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/regex.h:1441:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1441 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1441:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/regex.h:1534:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type&, const sub_match<_BiIter>&)'
 1534 |     operator==(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1534:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/regex.h:1613:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1613 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1613:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/regex.h:2186:5: note: candidate: 'template<class _Bi_iter, class _Alloc> bool std::__cxx11::operator==(const match_results<_BiIter, _Alloc>&, const match_results<_BiIter, _Alloc>&)'
 2186 |     operator==(const match_results<_Bi_iter, _Alloc>& __m1,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:2186:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 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_pair.h:1033:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1033 |     operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1033:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::pair<_T1, _T2>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:67:
/usr/include/c++/14/bits/stl_iterator.h:441:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  441 |     operator==(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:441:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::reverse_iterator<_Iterator>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/stl_iterator.h:486:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  486 |     operator==(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:486:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::reverse_iterator<_Iterator>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/stl_iterator.h:1667:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1667 |     operator==(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1667:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::move_iterator<_IteratorL>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
/usr/include/c++/14/bits/stl_iterator.h:1737:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1737 |     operator==(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1737:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::move_iterator<_IteratorL>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
In file included from /usr/include/c++/14/bits/char_traits.h:42,
                 from /usr/include/c++/14/string:42,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52:
/usr/include/c++/14/bits/postypes.h:192:5: note: candidate: 'template<class _StateT> bool std::operator==(const fpos<_StateT>&, const fpos<_StateT>&)'
  192 |     operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/postypes.h:192:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::fpos<_StateT>'
   57 |         r(i,n)if(T[i]==-1)root=i;
      |                         ^
In file included from /usr/include/c++/14/string:43:
/usr/include/c++/14/bits/allocator.h:235:5: note: candidate: 'template<class _T1, class _T2> bool std::operator==(const allocator<_CharT>&, const allocator<_T2>&)'
  235 |     operator==(const allocator<_T1>&, const allocator<_T2>&)
      |     ^~~~~~~~
/usr/include/c++/14/bits/allocator.h:235:5: note:   template argument deduction/substitution failed:
a.cc:57:25: note:   'Node' is not derived from 'const std::allocator<_CharT>'