Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Write down an algorithm to evaluate an expression given to you in postfix notation. Show the execution of your algorithm for the following given expression.
AB^CD-EF/GH+/+*
Ans.
Algorithm to evaluate Post fix Expression is shown as follows
Opndstk = the empty stack;
/*scan the input string reading one */
/*element at a time into symb */
while ( not end of input){
symb = next input character;
if (symb is an operand)
push (opndstk, symb);
else
{
/* symb is an operator */
opnd 2 = Pop (opnd stk);
opnd 1 = Pop (opnd stk);
value = result of applying symb to opnd 1 and opnd 2;
push (opndstk,value);
}/*end else */
}/*end while */
return (pop (opnd stk));
Symb
Opnd1
Opnd2
Value
Opndstk
A
B
A,B
^
A^B
C
A^B,C
D
A^B,C,D
-
C-D
A^B,C-D
E
A^B,C-D,E
F
A^B,C-D,E,F
/
E/F
A^B,C-D,E/F
G
A^B,C-D,E/F,G
H
A^B,C-D,E/F,G,H
+
G+H
A^B,C-D,E/F,G+H
(E/F)/(G+H)
A^B,C-D, (E/F) /(G+H)
(C-D)+(E/F)/(G+H)
A^B,(C-D)+
*
(C-
D)+(E/F)/(G+H)
A^B*((C-D)+
(E/F)/(G+H))
Ways to implement abstract data types A large part of the study of data structures and algorithms is learning about alternative ways to implement an ADT and evaluating alternat
Preorder traversal of a binary tree struct NODE { struct NODE *left; int value; /* can take any data type */ struct NODE *right; }; preorder(struct N
what are registers? why we need register? Definition? Types? What registers can do for us?
This algorithm inputs 5 values and outputs how many input numbers were positive and how many were negative. Data to be used: N = 1, -5, 2, -8, -7
Write c++ function to traverse the threaded binary tree in inorder traversal
Explain an efficient method of storing a sparse matrix in memory. Write a module to find the transpose of the sparse matrix stored in this way. A matrix which contains number o
A full binary tree with 2n+1 nodes have n non-leaf nodes
what are the charaterstics to determine weather an algorithm is good or not? explain in detail
Instructions Design and test a reference array. Reference array stores the references to user supplied objects of different types. Just think it as a heterogeneous array wh
In a doubly linked list, also called as 2 way list, each node is divided into 3 parts. The first part is called previous pointer field. It contains the address of the preceding
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd