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);
}
void 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];
}
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:8:1: error: expected initializer before 'void'
    8 | void setDepth(int u,int d){
      | ^~~~
a.cc: In function 'void setHeight(int)':
a.cc:17:29: error: invalid operands of types 'void' and 'int' to binary 'operator+'
   17 |         h1=setHeight(T[u].l)+1;
      |            ~~~~~~~~~~~~~~~~~^~
      |                     |        |
      |                     void     int
a.cc:19:29: error: invalid operands of types 'void' and 'int' to binary 'operator+'
   19 |         h2=setHeight(T[u].r)+1;
      |            ~~~~~~~~~~~~~~~~~^~
      |                     |        |
      |                     void     int
a.cc:20:9: error: 'H' was not declared in this scope
   20 |         H[u]=(h1>h2?h1:h2);
      |         ^
a.cc:21:9: error: 'reutrn' was not declared in this scope
   21 |         reutrn H[u];
      |         ^~~~~~
a.cc: In function 'void print(int)':
a.cc:26:31: error: 'getsibling' was not declared in this scope; did you mean 'getline'?
   26 |         cout<<", sibling = "<<getsibling(u);
      |                               ^~~~~~~~~~
      |                               getline
a.cc:29:14: error: expected primary-expression before ']' token
   29 |         if(T[]u.r!=-1)deg++;
      |              ^
a.cc:29:15: error: expected ')' before 'u'
   29 |         if(T[]u.r!=-1)deg++;
      |           ~   ^
      |               )
a.cc:32:30: error: 'H' was not declared in this scope
   32 |         cout<<", height = "<<H[u]<<", ";
      |                              ^
a.cc: In function 'int main()':
a.cc:40:14: error: 'n' was not declared in this scope; did you mean 'yn'?
   40 |         cin>>n;
      |              ^
      |              yn
a.cc:43:16: error: 'a' was not declared in this scope
   43 |           cin>>a>>b>>c;
      |                ^
a.cc:43:19: error: 'b' was not declared in this scope
   43 |           cin>>a>>b>>c;
      |                   ^
a.cc:43:22: error: 'c' was not declared in this scope
   43 |           cin>>a>>b>>c;
      |                      ^
a.cc:49:22: error: no match for 'operator==' (operand types are 'Node' and 'int')
   49 |         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:49:25: note:   'Node' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   49 |         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:49:25: note:   'Node' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
   49 |         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:49:25: note:   'Node' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   49 |         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:49:25: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   49 |         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:49:25: note:   'Node' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   49 |         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:49:25: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   49 |         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:49:25: note:   'Node' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   49 |         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:49:25: note:   'Node' is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>'
   49 |         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:49:25: note:   'Node' is not derived from 'const std::pair<_T1, _T2>'
   49 |         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:49:25: note:   'Node' is not derived from 'const std::reverse_iterator<_Iterator>'
   49 |         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:49:25: note:   'Node' is not derived from 'const std::reverse_iterator<_Iterator>'
   49 |         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:49:25: note:   'Node' is not derived from 'const std::move_iterator<_IteratorL>'
   49 |         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:49:25: note:   'Node' is not derived from 'const std::move_iterator<_IteratorL>'
   49 |         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/b