Binary Tree Data Structure

Binary Tree is a non-linear and hierarchical data structure where each node has at most two children referred to as the left child and the right child.  The topmost node in a binary tree is called the root, and the bottom-most nodes are called leaves. 

 

Solution :

class Node:

    def __init__(self, data):

        self.left = None
        self.right = None
        self.data = data

# Insert method to create nodes
    def insert(self, data):

        if self.data:
            if data < self.data:
                if self.left is None:
                    self.left = Node(data)
                else:
                    self.left.insert(data)
            elif data > self.data:
                if self.right is None:
                    self.right = Node(data)
                else:
                    self.right.insert(data)
        else:
            self.data = data
# Findval method to compare the value with nodes

    def findval(self, lkpval):
        if lkpval < self.data:
            if self.left is None:
                return str(lkpval)+" is not Found"
            return self.left.findval(lkpval)
        elif lkpval > self.data:
            if self.right is None:
                return str(lkpval)+" is not Found"
            return self.right.findval(lkpval)
        else:
            return str(self.data) + " is found"
# Print the tree

    def PrintTree(self):
        if self.left:
            self.left.PrintTree()
        print(self.data),
        if self.right:
            self.right.PrintTree()

root = Node(27)
root.insert(14)
root.insert(35)
root.insert(31)
root.insert(10)
root.insert(19)
print(root.findval(7))
print(root.findval(14))