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AVL -...

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#include<stdio.h> #include<conio.h> #include<alloc.h> #include<stdlib.h> /* RISHI AGARWAL             AVL TREE    ROLL NO 02   SE CMPN A */ int TRUE=1; struct node {   int info,bal;   int imbal;   struct node *left,*right; }; typedef struct node *nodeptr; nodeptr p,tp,q,proot; nodeptr getnode() { nodeptr r;   r=(nodeptr)malloc(sizeof(struct node));   return r; } nodeptr maketree(int x) { nodeptr r;   r=getnode();   if(r==NULL)   exit(1);   r->info=x;   r->bal=0;   r->imbal=0;   r->left=r->right=NULL;   return(r); } void setleft(nodeptr r,int x) { if(r==NULL) printf("\nVoid insertion ");   else if (r->left!=NULL) printf("\nInvalid insertion ");   else r->left=maketree(x); } void setright(nodeptr r,int x) {   if(r==NULL) printf("\nVoid insertion ");   else if (r->right!=NULL) printf("\nInvalid insertion ");   else r->right=maketree(x); } void inorder(nodeptr r) {   if(r!=NULL)   {  inorder(r->left);
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 printf("%d ",r->info);  inorder(r->right);   } } void leftrotate(nodeptr p) {   nodeptr hold;
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