evaluate the expression tree.txt

It is an ebook about trees

  
   
Given an expression tree, evaluate the expression and obtain a paranthesized form of the expression. 

Discuss it!          


The code below prints the paranthesized form of a tree. 


infix_exp(p) 
{ 
   if(p) 
   { 
      printf("("); 
      infix_exp(p->left); 
      printf(p->data); 
      infix_exp(p->right); 
      printf(")"); 
   } 
}