# Data Structures - Stacks

1:   The data structure required to evaluate a postfix expression is
2:   The postfix form of the expression
(A+B)∗(C∗D-E)∗F/G is
 A. AB+CD ∗ E−FG/∗∗ B. AB+CD ∗ E−F∗∗G/ C. AB+CD ∗ E−∗F∗G/ D. AB+CDE∗ −∗F∗G/ Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. veni said: (5:10am on Wednesday 20th March 2013) Binary tree for the expression sunita said: (9:47am on Monday 8th April 2013) the postfix form of the expression(a b)*(c*d-e)*f/g is snehal said: (2:48am on Saturday 1st March 2014) (ab )*(cd*e-)*fg/ab cd*e-fg/** DEEPIKA said: (10:53am on Wednesday 9th April 2014) answer is C.. before division, multiplication should be done, bcz division Write your comments here:
3:   What is the postfix form of the following prefix expression -A/B*C\$DE
 A. ABCDE\$*/- B. A-BCDE\$*/- C. ABC\$ED*/- D. A-BCDE\$*/ Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. suman said: (2:38am on Sunday 9th June 2013) how this is possible Rishi said: (7:01am on Sunday 23rd June 2013) Prefix Form : -A/B*C\$DEInfix Form : A-B/(C*(D\$E))Postfix Form : ABCDE\$*/- Write your comments here:
4:   The data structure required to check whether an expression contains balanced parenthesis is
 A. Stack B. Queue C. Tree D. Array Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. Write your comments here:
5:   The postfix form of A*B+C/D is
 A. *AB/CD+ B. AB*CD/+ C. A*BC+/D D. ABCD+/ * Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:

## Suggest an improvement

Syllabus covered in this section is-

• Abstract data types
• Algorithms
• Stacks, Queues
• Trees, Binary search trees
• Binary heaps

This Section covers Data Structures Questions Answers using C language .
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