Problem:

Binary Tree

A rooted binary tree is a tree with a root node in which every node has at most two children.

Your task is to write a program which reads a rooted binary tree T and prints the following information for each node u of T:

node ID of u

parent of u

sibling of u

the number of children of u

depth of u

height of u

node type (root, internal node or leaf)

If two nodes have the same parent, they are siblings. Here, if u and v have the same parent, we say u is a sibling of v (vice versa).

The height of a node in a tree is the number of edges on the longest simple downward path from the node to a leaf.

Here, the given binary tree consists of n nodes and evey node has a unique ID from 0 to n-1.

Input

The first line of the input includes an integer n, the number of nodes of the tree.

In the next n lines, the information of each node is given in the following format:

id left right

id is the node ID, left is ID of the left child and right is ID of the right child. If the node does not have the left (right) child, the left(right) is indicated by -1.

Output

Print the information of each node in the following format:

node id: parent = p, sibling = s, degree = deg, depth = dep, height = h, type

p is ID of its parent. If the node does not have a parent, print -1.

s is ID of its sibling. If the node does not have a sibling, print -1.

deg, dep and h are the number of children, depth and height of the node respectively.

type is a type of nodes represented by a string (root, internal node or leaf. If the root can be considered as a leaf or an internal node, print root.

Please follow the format presented in a sample output below.

Constraints

1 ≤ n ≤ 25

Sample Input 1

9
0 1 4
1 2 3
2 -1 -1
3 -1 -1
4 5 8
5 6 7
6 -1 -1
7 -1 -1
8 -1 -1

Sample Output 1

node 0: parent = -1, sibling = -1, degree = 2, depth = 0, height = 3, root
node 1: parent = 0, sibling = 4, degree = 2, depth = 1, height = 1, internal node
node 2: parent = 1, sibling = 3, degree = 0, depth = 2, height = 0, leaf
node 3: parent = 1, sibling = 2, degree = 0, depth = 2, height = 0, leaf
node 4: parent = 0, sibling = 1, degree = 2, depth = 1, height = 2, internal node
node 5: parent = 4, sibling = 8, degree = 2, depth = 2, height = 1, internal node
node 6: parent = 5, sibling = 7, degree = 0, depth = 3, height = 0, leaf
node 7: parent = 5, sibling = 6, degree = 0, depth = 3, height = 0, leaf
node 8: parent = 4, sibling = 5, degree = 0, depth = 2, height = 0, leaf

Reference

Introduction to Algorithms, Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, and Clifford Stein. The MIT Press.



Sample input:
9
0 1 4
1 2 3
2 -1 -1
3 -1 -1
4 5 8
5 6 7
6 -1 -1
7 -1 -1
8 -1 -1


Sample output:
node 0: parent = -1, sibling = -1, degree = 2, depth = 0, height = 3, root
node 1: parent = 0, sibling = 4, degree = 2, depth = 1, height = 1, internal node
node 2: parent = 1, sibling = 3, degree = 0, depth = 2, height = 0, leaf
node 3: parent = 1, sibling = 2, degree = 0, depth = 2, height = 0, leaf
node 4: parent = 0, sibling = 1, degree = 2, depth = 1, height = 2, internal node
node 5: parent = 4, sibling = 8, degree = 2, depth = 2, height = 1, internal node
node 6: parent = 5, sibling = 7, degree = 0, depth = 3, height = 0, leaf
node 7: parent = 5, sibling = 6, degree = 0, depth = 3, height = 0, leaf
node 8: parent = 4, sibling = 5, degree = 0, depth = 2, height = 0, leaf

Submission status: Wrong Answer

Solution code:
class Tree:
    def __init__(self,parent,left,right):
        self.parent = parent
        self.left = left
        self.right = right
        self.sibling = -1
        self.degree = 0
        self.depth = -1
        self.height = -1

def getdepth(u):
    for i in range(N):
        depth = 0
        j = i
        while trees[j].parent != -1:
            j = trees[j].parent
            depth += 1
        trees[i].depth = depth

def getheight(u):
    hleft = hright = 0
    if trees[u].left != -1:
        hleft = getheight(trees[u].left) + 1
    if trees[u].right != -1:
        hright = getheight(trees[u].right) + 1

    trees[u].height = hleft if hleft > hright else hright
    return trees[u].height


N = int(input())
# ?????????
trees = [Tree(-1,-1,-1) for i in range(N)]
for i in range(N):
    l = list(map(int, input().split()))
    no = l[0]
    left = l[1]
    right = l[2]
    trees[i].left = left
    trees[i].right = right
    if left != -1:
        trees[left].parent = no
        trees[left].sibling = right
        trees[no].degree = 2
    if right != -1:
        trees[right].parent = no
        trees[right].sibling = left

r = 0
for i in range(N):
    if trees[i].parent == -1:
        r = i

getdepth(r)
getheight(r)

for i in range(N):
    type = ""
    if trees[i].parent == -1: type = "root"
    elif trees[i].left == -1: type = "leaf"
    else: type = "internal node"

    print("node {0}: parent = {1}, sibling = {2}, degree = {3}, depth = {4}, height = {5}, {6}".format(
        i,
        trees[i].parent,
        trees[i].sibling,
        trees[i].degree,
        trees[i].depth,
        trees[i].height,
        type))

Submission status: Wrong Answer

Solution code:
class Tree:
    def __init__(self,parent,left,right):
        self.parent = parent
        self.left = left
        self.right = right
        self.sibling = -1
        self.degree = 0
        self.depth = -1
        self.height = -1

def getdepth(u):
    for i in range(N):
        depth = 0
        j = i
        while trees[j].parent != -1:
            j = trees[j].parent
            depth += 1
        trees[i].depth = depth

def getheight(u):
    hleft = hright = 0
    if trees[u].left != -1:
        hleft = getheight(trees[u].left) + 1
    if trees[u].right != -1:
        hright = getheight(trees[u].right) + 1

    trees[u].height = hleft if hleft > hright else hright
    return trees[u].height


N = int(input())
# ?????????
trees = [Tree(-1,-1,-1) for i in range(N)]
for i in range(N):
    l = list(map(int, input().split()))
    no = l[0]
    left = l[1]
    right = l[2]
    trees[no].left = left
    trees[no].right = right
    if left != -1:
        trees[left].parent = no
        trees[left].sibling = right
        trees[no].degree = 2
    if right != -1:
        trees[right].parent = no
        trees[right].sibling = left

r = 0
for i in range(N):
    if trees[i].parent == -1:
        r = i

getdepth(r)
getheight(r)

for i in range(N):
    type = ""
    if trees[i].parent == -1: type = "root"
    elif trees[i].left == -1: type = "leaf"
    else: type = "internal node"

    print("node {0}: parent = {1}, sibling = {2}, degree = {3}, depth = {4}, height = {5}, {6}".format(
        i,
        trees[i].parent,
        trees[i].sibling,
        trees[i].degree,
        trees[i].depth,
        trees[i].height,
        type))

Submission status: Wrong Answer

Solution code:
class Tree:
    def __init__(self,parent,left,right):
        self.parent = parent
        self.left = left
        self.right = right
        self.sibling = -1
        self.degree = 0
        self.depth = -1
        self.height = -1

def getdepth(u):
    for i in range(N):
        depth = 0
        j = i
        while trees[j].parent != -1:
            j = trees[j].parent
            depth += 1
        trees[i].depth = depth

def getheight(u):
    hleft = hright = 0
    if trees[u].left != -1:
        hleft = getheight(trees[u].left) + 1
    if trees[u].right != -1:
        hright = getheight(trees[u].right) + 1

    trees[u].height = hleft if hleft > hright else hright
    return trees[u].height


N = int(input())
# ?????????
trees = [Tree(-1,-1,-1) for i in range(N)]
for i in range(N):
    l = list(map(int, input().split()))
    no = l[0]
    left = l[1]
    right = l[2]
    trees[no].left = left
    trees[no].right = right
    if left != -1:
        trees[left].parent = no
        trees[left].sibling = right
        trees[no].degree += 1
    if right != -1:
        trees[right].parent = no
        trees[right].sibling = left
        trees[no].degree += 1

r = 0
for i in range(N):
    if trees[i].parent == -1:
        r = i

getdepth(r)
getheight(r)

for i in range(N):
    type = ""
    if trees[i].parent == -1: type = "root"
    elif trees[i].left == -1: type = "leaf"
    else: type = "internal node"

    print("node {0}: parent = {1}, sibling = {2}, degree = {3}, depth = {4}, height = {5}, {6}".format(
        i,
        trees[i].parent,
        trees[i].sibling,
        trees[i].degree,
        trees[i].depth,
        trees[i].height,
        type))

Submission status: Wrong Answer

Solution code:
N = int(input())
tree = [{'p': -1, 'l': -1, 'r': -1, 'd': 0, 'h': 0, 's': -1} for _ in range(N)]
NN = [list(map(int, input().split())) for _ in range(N)]

for l in NN:
    tree[l[0]]['l'] = l[1]
    tree[l[0]]['r'] = l[2]
    if l[1] > -1:
        tree[l[1]]['p'] = l[0]
    if l[2] > -1:
        tree[l[2]]['p'] = l[0]
    if l[1] > -1 and l[2] > -1:
        tree[l[1]]['s'] = l[2]
        tree[l[2]]['s'] = l[1]
r = [i for i, t in enumerate(tree) if t['p'] == -1][0]

def calcDepth(tree, root, curDepth=0):
    tree[root]['d'] = curDepth
    ld, rd = -1, -1
    if tree[root]['l'] > -1:
        ld = calcDepth(tree, tree[root]['l'], curDepth + 1)
    if tree[root]['r'] > -1:
        rd = calcDepth(tree, tree[root]['r'], curDepth + 1)
    return max(curDepth, ld, rd)

maxDepth = calcDepth(tree, r)

for i, t in enumerate(tree):
    state = 'internal node'
    if t['p'] == -1:
        state = 'root'
    elif t['l'] == -1 and t['r'] == -1:
        state = 'leaf'
    degree = 0
    if t['l'] > -1:
        degree += 1
    if t['r'] > -1:
        degree += 1
    print('node {0}: parent = {1}, sibling = {2}, degree = {3}, depth = {4}, height = {5}, {6}'.format(
        i, t['p'], t['s'], t['d'], degree, maxDepth - t['d'], state
    ))

Submission status: Wrong Answer

Solution code:
N = int(input())
tree = [{'p': -1, 'l': -1, 'r': -1, 'd': 0, 'h': 0, 's': -1} for _ in range(N)]
NN = [list(map(int, input().split())) for _ in range(N)]

for l in NN:
    tree[l[0]]['l'] = l[1]
    tree[l[0]]['r'] = l[2]
    if l[1] > -1:
        tree[l[1]]['p'] = l[0]
    if l[2] > -1:
        tree[l[2]]['p'] = l[0]
    if l[1] > -1 and l[2] > -1:
        tree[l[1]]['s'] = l[2]
        tree[l[2]]['s'] = l[1]
r = [i for i, t in enumerate(tree) if t['p'] == -1][0]

def calcDepth(tree, root, curDepth=0):
    tree[root]['d'] = curDepth
    ld, rd = -1, -1
    if tree[root]['l'] > -1:
        ld = calcDepth(tree, tree[root]['l'], curDepth + 1)
    if tree[root]['r'] > -1:
        rd = calcDepth(tree, tree[root]['r'], curDepth + 1)
    return max(curDepth, ld, rd)

maxDepth = calcDepth(tree, r)

for i, t in enumerate(tree):
    state = 'internal node'
    if t['p'] == -1:
        state = 'root'
    elif t['l'] == -1 and t['r'] == -1:
        state = 'leaf'
    degree = 0
    if t['l'] > -1:
        degree += 1
    if t['r'] > -1:
        degree += 1
    print('node {0}: parent = {1}, sibling = {2}, degree = {3}, depth = {4}, height = {5}, {6}'.format(
        i, t['p'], t['s'], degree, t['d'], maxDepth - t['d'], state
    ))

Submission status: Wrong Answer

Solution code:
class Tree:
    def __init__(self, n):
        self.n = n
        self.nodes = [Node(i) for i in range(n)]
        self.root = -1

    def set_tree(self):
        for _ in range(self.n):
            i_str = [int(i) for i in input().split()]
            for i in range(2):
                if i_str[i+1] != -1:
                    self.nodes[i_str[0]].degree += 1
                    self.nodes[i_str[i+1]].parent = i_str[0]
                    self.nodes[i_str[i+1]].type = "leaf"
            if self.nodes[i_str[0]].degree == 2:
                self.nodes[i_str[1]].sibling = i_str[2]
                self.nodes[i_str[2]].sibling = i_str[1]
            if self.nodes[i_str[0]].degree > 0 and self.nodes[i_str[0]].type == "leaf":
                self.nodes[i_str[0]].type = "internal node"

    def set_depth_height(self):
        self.set_root()
        self.set_depth(self.root)

        for node in self.nodes:
            if node.type == "leaf":
                self.set_height(node.id)

    def set_depth(self, parent, depth = -1):
        self.nodes[parent].depth = depth + 1
        for node in self.nodes:
            if node.parent == parent:
                self.set_depth(node.id, depth + 1)

    def set_height(self, child, height = -1):
        if self.nodes[child].height < height + 1:
            self.nodes[child].height = height + 1
            if self.nodes[child].parent != -1:
                self.set_height(self.nodes[child].parent, height + 1)

    def set_root(self):
        for tn in self.nodes:
            if tn.type == 'root':
                 self.root = tn.id

    def show_tree_info(self):
        for node in self.nodes:
            node.show_node_info()

class Node:
    def __init__(self, id):
        self.id = id
        self.parent = -1
        self.sibling = -1
        self.degree = 0
        self.depth = 0
        self.height = -1
        self.type = "root"

    def show_node_info(self):
        print("node {0}: parent = {1}, sibling = {2}, degree = {3}, depth = {4}, height = {5}, {6}"\
        .format(self.id, self.parent, self.sibling, self.degree, self.depth, self.height, self.type))

if __name__ == '__main__':
    tree = Tree(int(input()))
    tree.set_tree()
    tree.set_depth_height()
    tree.show_tree_info()

Submission status: Wrong Answer

Solution code:
class Tree:
    def __init__(self, n):
        self.n = n
        self.nodes = [Node(i) for i in range(n)]
        self.root = -1

    def set_tree(self):
        for _ in range(self.n):
            i_str = [int(i) for i in input().split()]
            for i in range(2):
                if i_str[i+1] != -1:
                    self.nodes[i_str[0]].degree += 1
                    self.nodes[i_str[i+1]].parent = i_str[0]
                    self.nodes[i_str[i+1]].type = "leaf"
            if self.nodes[i_str[0]].degree == 2:
                self.nodes[i_str[1]].sibling = i_str[2]
                self.nodes[i_str[2]].sibling = i_str[1]
            if self.nodes[i_str[0]].degree > 0 and self.nodes[i_str[0]].type == "leaf":
                self.nodes[i_str[0]].type = "internal node"

    def set_depth_height(self):
        self.set_root()
        self.set_depth(self.root)

        for node in self.nodes:
            if node.type == "leaf":
                self.set_height(node.id)

    def set_depth(self, parent, depth = -1):
        self.nodes[parent].depth = depth + 1
        for node in self.nodes:
            if node.parent == parent:
                self.set_depth(node.id, depth + 1)

    def set_height(self, child, height = -1):
        if self.nodes[child].height <= height + 1:
            self.nodes[child].height = height + 1
            if self.nodes[child].parent != -1:
                self.set_height(self.nodes[child].parent, height + 1)

    def set_root(self):
        for tn in self.nodes:
            if tn.type == 'root':
                 self.root = tn.id

    def show_tree_info(self):
        for node in self.nodes:
            node.show_node_info()

class Node:
    def __init__(self, id):
        self.id = id
        self.parent = -1
        self.sibling = -1
        self.degree = 0
        self.depth = 0
        self.height = 0
        self.type = "root"

    def show_node_info(self):
        print("node {0}: parent = {1}, sibling = {2}, degree = {3}, depth = {4}, height = {5}, {6}"\
        .format(self.id, self.parent, self.sibling, self.degree, self.depth, self.height, self.type))

if __name__ == '__main__':
    tree = Tree(int(input()))
    tree.set_tree()
    tree.set_depth_height()
    tree.show_tree_info()

Submission status: Wrong Answer

Solution code:
class Tree:
    def __init__(self, n):
        self.n = n
        self.nodes = [Node(i) for i in range(n)]
        self.root = -1

    def set_tree(self):
        for _ in range(self.n):
            i_str = [int(i) for i in input().split()]
            for i in range(2):
                if i_str[i+1] != -1:
                    self.nodes[i_str[0]].degree += 1
                    self.nodes[i_str[i+1]].parent = i_str[0]
                    if self.nodes[i_str[i+1]].type == "root":
                        self.nodes[i_str[i+1]].type = "leaf"
            if self.nodes[i_str[0]].degree == 2:
                self.nodes[i_str[1]].sibling = i_str[2]
                self.nodes[i_str[2]].sibling = i_str[1]
            if self.nodes[i_str[0]].degree > 0 and self.nodes[i_str[0]].type == "leaf":
                self.nodes[i_str[0]].type = "internal node"

    def set_depth_height(self):
        self.set_root()
        self.set_depth(self.root)

        for node in self.nodes:
            if node.type == "leaf":
                self.set_height(node.id)

    def set_depth(self, parent, depth = -1):
        self.nodes[parent].depth = depth + 1
        for node in self.nodes:
            if node.parent == parent:
                self.set_depth(node.id, depth + 1)

    def set_height(self, child, height = -1):
        if self.nodes[child].height <= height + 1:
            self.nodes[child].height = height + 1
            if self.nodes[child].parent != -1:
                self.set_height(self.nodes[child].parent, height + 1)

    def set_root(self):
        for tn in self.nodes:
            if tn.type == 'root':
                 self.root = tn.id

    def show_tree_info(self):
        for node in self.nodes:
            node.show_node_info()

class Node:
    def __init__(self, id):
        self.id = id
        self.parent = -1
        self.sibling = -1
        self.degree = 0
        self.depth = 0
        self.height = 0
        self.type = "root"

    def show_node_info(self):
        print("node {0}: parent = {1}, sibling = {2}, degree = {3}, depth = {4}, height = {5}, {6}"\
        .format(self.id, self.parent, self.sibling, self.degree, self.depth, self.height, self.type))

if __name__ == '__main__':
    tree = Tree(int(input()))
    tree.set_tree()
    tree.set_depth_height()
    tree.show_tree_info()

Submission status: Wrong Answer

Solution code:
class Tree:
    def __init__(self, n):
        self.n = n
        self.nodes = [Node(i) for i in range(n)]
        self.root = -1

    def set_tree(self):
        for _ in range(self.n):
            i_str = [int(i) for i in input().split()]
            for i in range(2):
                if i_str[i+1] != -1:
                    self.nodes[i_str[0]].degree += 1
                    self.nodes[i_str[i+1]].parent = i_str[0]
                    self.nodes[i_str[i+1]].type = "leaf"
            if self.nodes[i_str[0]].degree == 2:
                self.nodes[i_str[1]].sibling = i_str[2]
                self.nodes[i_str[2]].sibling = i_str[1]
            if self.nodes[i_str[0]].degree > 0:
                self.nodes[i_str[0]].type = "internal node"

    def set_depth_height(self):
        self.set_root()
        self.set_depth(self.root)

        for node in self.nodes:
            if node.type == "leaf":
                self.set_height(node.id)

    def set_depth(self, parent, depth = -1):
        self.nodes[parent].depth = depth + 1
        for node in self.nodes:
            if node.parent == parent:
                self.set_depth(node.id, depth + 1)

    def set_height(self, child, height = -1):
        if self.nodes[child].height <= height + 1:
            self.nodes[child].height = height + 1
            if self.nodes[child].parent != -1:
                self.set_height(self.nodes[child].parent, height + 1)

    def set_root(self):
        for tn in self.nodes:
            if tn.parent == -1:
                self.root = tn.id
                tn.type = "root"
                break

    def show_tree_info(self):
        for node in self.nodes:
            node.show_node_info()

class Node:
    def __init__(self, id):
        self.id = id
        self.parent = -1
        self.sibling = -1
        self.degree = 0
        self.depth = 0
        self.height = 0
        self.type = "root"

    def show_node_info(self):
        print("node {0}: parent = {1}, sibling = {2}, degree = {3}, depth = {4}, height = {5}, {6}"\
        .format(self.id, self.parent, self.sibling, self.degree, self.depth, self.height, self.type))

if __name__ == '__main__':
    tree = Tree(int(input()))
    tree.set_tree()
    tree.set_depth_height()
    tree.show_tree_info()

Submission status: Wrong Answer

Solution code:
N = int(input())
M = []

type = ['root','internal node','leaf']

class node:
    def __init__(self,idx,parent,left,right):
        self.idx = idx
        self.parent = parent
        self.left = left
        self.right= right
        
        self.sibling = -1
        self.degree= -1
        self.depth = -1
        self.height = 0
        self.type=-1

    def tostr(self):
        print('node %d: parent = %d, sibling = %d, degree = %d, depth = %d, height = %d, %s' % (self.idx, self.parent, self.sibling, self.degree, self.depth, self.height, type[self.type])) 
tree = [[] for x in range(N)]


#'idx, parent, sibling, degree, depth, height, type'

for a in range(N):
    idx,left,right = map(int,input().strip().split(' '))
    tree[idx] = node(idx, -1, left,right)

for a in range(N):
    nd = tree[a]
    if nd.left != -1:
        tree[nd.left].parent = a
    if nd.right != -1:
        tree[nd.right].parent = a

    tree[nd.left].sibling = nd.right
    tree[nd.right].sibling = nd.left

    if nd.left == nd.right :
        nd.type=2
        nd.degree=0
    else:
        nd.type=1
        if nd.left == -1 or nd.right == -1:
            nd.degree = 1
        else:
            nd.degree = 2

root = ''
for a in range(N):
    if tree[a].parent == -1:
        root = a
        tree[root].type=0
    
def search(root,depth):
    root = tree[root]
    root.depth = depth
    if root.type ==  2:
        return
    else:
        search(root.right,depth+1)
        search(root.left,depth+1)

search(root,0)

def height(root,hei):
    root = tree[root]
    if root.type==2:
        root.height=0
        return hei
    else:
        if root.left == -1:
            return height(root.right,hei+1)
        elif root.right == -1:
            return height(root.left,hei+1)
        else:
            return max(height(root.left,hei+1),height(root.right,hei+1))
for i in range(N):
    tree[i].height=height(i,0)

for a in range(N):
    tree[a].tostr()

Submission status: Wrong Answer

Solution code:
N = int(input())
M = []

type = ['root','internal node','leaf']

class node:
    def __init__(self,idx,parent,left,right):
        self.idx = idx
        self.parent = parent
        self.left = left
        self.right= right
        
        self.sibling = -1
        self.degree= -1
        self.depth = -1
        self.height = 0
        self.type=-1

    def tostr(self):
        print('node %d: parent = %d, sibling = %d, degree = %d, depth = %d, height = %d, %s' % (self.idx, self.parent, self.sibling, self.degree, self.depth, self.height, type[self.type])) 
tree = [[] for x in range(N)]


#'idx, parent, sibling, degree, depth, height, type'

for a in range(N):
    idx,left,right = map(int,input().strip().split(' '))
    tree[idx] = node(idx, -1, left,right)

for a in range(N):
    nd = tree[a]
    if nd.left != -1:
        tree[nd.left].parent = a
    if nd.right != -1:
        tree[nd.right].parent = a
    if nd.left !=  -1:
        tree[nd.left].sibling = nd.right
    if nd.right !=  -1:
        tree[nd.right].sibling = nd.left

    if nd.left == nd.right :
        nd.type=2
        nd.degree=0
    else:
        nd.type=1
        if nd.left == -1 or nd.right == -1:
            nd.degree = 1
        else:
            nd.degree = 2

root = ''
for a in range(N):
    if tree[a].parent == -1:
        root = a
        tree[root].type=0
    
def search(root,depth):
    root = tree[root]
    root.depth = depth
    if root.type ==  2:
        return
    else:
        if root.right == -1 or root.left == -1:
            return
        search(root.right,depth+1)
        search(root.left,depth+1)

search(root,0)

def height(root,hei):
    root = tree[root]
    if root.type==2 or (root.right == -1 and root.left == -1):
        root.height=0
        return hei
    else:
        if root.left == -1:
            return height(root.right,hei+1)
        elif root.right == -1:
            return height(root.left,hei+1)
        else:
            return max(height(root.left,hei+1),height(root.right,hei+1))
for i in range(N):
    tree[i].height=height(i,0)

for a in range(N):
    tree[a].tostr()

Submission status: Wrong Answer

Solution code:
N = int(input())
M = []

type = ['root','internal node','leaf']

class node:
    def __init__(self,idx,parent,left,right):
        self.idx = idx
        self.parent = parent
        self.left = left
        self.right= right
        
        self.sibling = -1
        self.degree= 0
        self.depth = 0
        self.height = 0
        self.type=-1

    def tostr(self):
        print('node %d: parent = %d, sibling = %d, degree = %d, depth = %d, height = %d, %s' % (self.idx, self.parent, self.sibling, self.degree, self.depth, self.height, type[self.type])) 
tree = [[] for x in range(N)]


#'idx, parent, sibling, degree, depth, height, type'

for a in range(N):
    idx,left,right = map(int,input().strip().split(' '))
    tree[idx] = node(idx, -1, left,right)

for a in range(N):
    nd = tree[a]
    if nd.left != -1:
        tree[nd.left].parent = a
    if nd.right != -1:
        tree[nd.right].parent = a
    if nd.left !=  -1:
        tree[nd.left].sibling = nd.right
    if nd.right !=  -1:
        tree[nd.right].sibling = nd.left

    if nd.left == nd.right :
        nd.type=2
        nd.degree=0
    else:
        nd.type=1
        if nd.left == -1 or nd.right == -1:
            nd.degree = 1
        else:
            nd.degree = 2

root = ''
for a in range(N):
    if tree[a].parent == -1:
        root = a
        tree[root].type=0
    
def search(root,depth):
    root = tree[root]
    root.depth = depth
    if root.type ==  2:
        return
    else:
        if root.right == -1 or root.left == -1:
            return
        search(root.right,depth+1)
        search(root.left,depth+1)

search(root,0)

def height(root,hei):
    root = tree[root]
    if root.type==2 or (root.right == -1 and root.left == -1):
        root.height=0
        return hei
    else:
        if root.left == -1:
            return height(root.right,hei+1)
        elif root.right == -1:
            return height(root.left,hei+1)
        else:
            return max(height(root.left,hei+1),height(root.right,hei+1))
for i in range(N):
    tree[i].height=height(i,0)

for a in range(N):
    tree[a].tostr()

Submission status: Wrong Answer

Solution code:
N = int(input())
M = []

type = ['root','internal node','leaf']

class node:
    def __init__(self,idx,parent,left,right):
        self.idx = idx
        self.parent = parent
        self.left = left
        self.right= right
        
        self.sibling = -1
        self.degree= 0
        self.depth = 0
        self.height = 0
        self.type=-1

    def tostr(self):
        print('node %d: parent = %d, sibling = %d, degree = %d, depth = %d, height = %d, %s' % (self.idx, self.parent, self.sibling, self.degree, self.depth, self.height, type[self.type])) 
tree = [[] for x in range(N)]


#'idx, parent, sibling, degree, depth, height, type'

for a in range(N):
    idx,left,right = map(int,input().strip().split(' '))
    tree[idx] = node(idx, -1, left,right)

for a in range(N):
    nd = tree[a]
    if nd.left != -1:
        tree[nd.left].parent = a
    if nd.right != -1:
        tree[nd.right].parent = a
    if nd.left !=  -1:
        tree[nd.left].sibling = nd.right
    if nd.right !=  -1:
        tree[nd.right].sibling = nd.left

    if nd.left == nd.right :
        nd.type=2
        nd.degree=0
    else:
        nd.type=1
        if nd.left == -1 or nd.right == -1:
            nd.degree = 1
        else:
            nd.degree = 2

root = ''
for a in range(N):
    if tree[a].parent == -1:
        root = a
        tree[root].type=0
    
def search(root,depth):
    root = tree[root]
    root.depth = depth
    if root.type ==  2:
        return
    else:
        if root.right == -1 and root.left == -1:
            return
        search(root.right,depth+1)
        search(root.left,depth+1)

search(root,0)

def height(root,hei):
    root = tree[root]
    if root.type==2 or (root.right == -1 and root.left == -1):
        root.height=0
        return hei
    else:
        if root.left == -1:
            return height(root.right,hei+1)
        elif root.right == -1:
            return height(root.left,hei+1)
        else:
            return max(height(root.left,hei+1),height(root.right,hei+1))
for i in range(N):
    tree[i].height=height(i,0)

for a in range(N):
    tree[a].tostr()