diff --git a/Trees/AVLTREE.C b/Trees/AVLTREE.C
index 6ece137f..b09dc26f 100644
--- a/Trees/AVLTREE.C
+++ b/Trees/AVLTREE.C
@@ -1,6 +1,15 @@
 /*Successful implementation of AVL tree with proper rotations
 Code done by Parshwa Shah
 */
+/*Update From Hari(username: Haricodezz)
+clrscr() is not part of the standard C library and is not portable.
+ For cross-platform compatibility, consider using:
+   system("cls");   // for Windows
+   system("clear"); // for Unix-like systems
+ Alternatively, ANSI escape codes can be used for more control over console output.
+ 
+ 
+ */
 #include<stdio.h>
 #include<conio.h>
 #include<stdlib.h>
@@ -25,13 +34,13 @@ int max1(int a,int b)
 {
 return (a>b)?a:b;
 }
-struct node* new(int key)
+struct node* New(int key)
 {
 	struct node* node = (struct node*)malloc(sizeof(struct node));
 	node->key = key;
 	node->left = NULL;
 	node->right = NULL;
-	node->h= 1; // new node is initially added at leaf
+	node->h= 1; // New node is initially added at leaf
 	return(node);
 }
 struct node *leftrot(struct node *x)
@@ -70,7 +79,7 @@ int bal=0;
 if(ele==NULL)
 {
 //printf("Key=%d Balance factor=0\n",ele->key);
-return new(ke);
+return New(ke);
 }
 else if(ke>ele->key)
 {
@@ -118,15 +127,15 @@ while(curr->left!=NULL)
 {curr=curr->left;}
 return curr;
 }
-struct node* delete(struct node *root,int key)
+struct node* Delete(struct node *root,int key)
 {
 int bal=0;
 if(root==NULL)
 {return root;}
 if(key<root->key)
-{root->left=delete(root->left,key);}
+{root->left=Delete(root->left,key);}
 else if(key>root->key)
-{root->right=delete(root->right,key);}
+{root->right=Delete(root->right,key);}
 else
 {
 if((root->left==NULL) || (root->right==NULL))
@@ -147,7 +156,7 @@ else
 {
 struct node *temp= inordersucc(root->right);
 root->key=temp->key;
-root->right=delete(root->right,temp->key);
+root->right=Delete(root->right,temp->key);
 }
 }
 
@@ -189,10 +198,17 @@ inorder(root->left);
 printf("%d ",root->key);
 inorder(root->right);
 }
-void main()
+int main()
 {
 int key,m=0;
-clrscr();
+// clrscr();
+// Replaced clrscr() with system-specific clear command for portability.
+#ifdef _WIN32
+    system("cls");   // Clear screen on Windows
+#else
+    system("clear"); // Clear screen on Unix-like systems
+#endif
+
 do
 {
 printf("Enter the key to insert or 0 to quit\n");
@@ -224,11 +240,12 @@ scanf("%d",&key);
 if(key==0)
 break;
 printf("\n************************************\n\n");
-root=delete(root,key);
+root=Delete(root,key);
 printf("\n************************************\n\n");
 }
 while(key!=0);
 printf("Inorder traversal of tree : ");
 inorder(root);
 getch();
+return 0;
 }
\ No newline at end of file