Merge pull request #531 from Sudhir8787/patch-1

Create 114-flatten-binary-tree-to-linked-list.cpp

Author: gantavyamalviya

121 Leetcode/114-flatten-binary-tree-to-linked-list.cpp

@@ -0,0 +1,19 @@
+class Solution {
+public:
+    void flatten(TreeNode* root) {
+        if(!root) return;
+        while(root)
+        {
+            TreeNode* temp = root->right;
+            root->right = root->left;
+            root->left = NULL;
+           TreeNode* node = root;
+            while(node->right)
+            {
+                node = node->right;
+            }
+            node->right = temp;
+            root = root->right;
+        }
+    }
+};