Create Morris Traversal.cpp

Binary_Tree/All_Binary_Tree_question/Morris Traversal.cpp

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+//MORRIS TRAVERSAL
+//Time Complexity - O(N)
+//Space Complexity - O(1)
+
+#include<bits/stdc++.h>
+using namespace std;
+//Tree Node
+struct Node{
+  public:
+  int data;
+  Node* left;
+  Node* right;
+  Node(int x){
+    data=x;
+    left=NULL;
+    right=NULL;
+  }
+};
+//function defining Morris Traversal
+void MorrisTraversal(Node* root){
+  Node* curr;
+  Node* prev;
+  if(root==NULL)return ;
+
+  curr=root;
+  while(curr!=NULL){
+    if(curr->left==NULL){
+      cout<<curr->data<<" ";
+      curr=curr->right;
+    }
+    else{
+      prev=curr->left;
+      while(prev->right!=NULL && prev->right!=curr){
+        prev=prev->right;
+      }
+      if(prev->right==NULL){
+        prev->right=curr;
+        curr=curr->left;
+      }  
+      else{
+        prev->right=NULL;
+        cout<<curr->data<<" ";
+        curr=curr->right;
+      }  
+    }  
+  }  
+}  
+int main(){
+  Node* root=new Node(10);
+  root->left=new Node(20);
+  root->right=new Node(30);
+  root->left->left=new Node(40);
+  root->left->right=new Node(50);
+  root->right->left=new Node(60);
+  root->right->right=new Node(70);
+  MorrisTraversal(root);
+  return 0;
+}