[Updated] Goldman Sachs Aptitude Test Questions and Answers
Practice List of TCS Digital Coding Questions !!!
Take 50+ FREE!! Online Data Interpretation Mock test to crack any Exams.

Stacks Questions

Home > Technical Aptitude > Data Structures > Stacks > General Questions
NA
SHSTTON
38
Solv. Corr.
209
Solv. In. Corr.
247
Attempted
0 M:23 S
Avg. Time

71 / 93

Given C snippet is a code to push an element into a stack, find the statement number that has error.

void push( struct stack *s, int x)
{
if(s->top==MAX-1)
{
printf(“stack overflow”);
}
else
{
s->items[++s->top]=x;
s++;
}
}


A9

B1

C11

D10

Answer: Option D

Explanation:

The stack's top position is incremented twice at the same time. So, when the next element is pushed, there is unit gap between this element and the previous element.

Workspace

NA
SHSTTON
52
Solv. Corr.
64
Solv. In. Corr.
116
Attempted
0 M:0 S
Avg. Time

72 / 93

Choose the correct option.

How many stacks are required for applying evaluation of infix expression algorithm?


Atwo

Bone

Cfour

Dthree

Answer: Option A

Explanation:

Two stacks are required for evaluation of infix expression – one for operands and one for operators.

Workspace

NA
SHSTTON
60
Solv. Corr.
21
Solv. In. Corr.
81
Attempted
0 M:0 S
Avg. Time

73 / 93

Choose the correct option.

Using the evaluation of infix expression, evaluate a^b+c and choose the correct answer. (a=2, b=2, c=2)


A8

B12

C6

D10

Answer: Option C

Explanation:

^ has the highest precedence. Hence, 2^2 is evaluated and then 4+2 gives 6.

Workspace

NA
SHSTTON
37
Solv. Corr.
27
Solv. In. Corr.
64
Attempted
0 M:0 S
Avg. Time

74 / 93

Choose the correct option.

Evaluate the following infix expression using algorithm and choose the correct answer. a+b*c-d/e^f where a=1, b=2, c=3, d=4, e=2, f=2.


A8

B6

C7

D9

Answer: Option B

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
36
Solv. Corr.
24
Solv. In. Corr.
60
Attempted
0 M:0 S
Avg. Time

75 / 93

Choose the correct option.

What would be the solution to the given prefix notation?

- + 1 2 * 3 / 6 2


A-6

B6

C-3

D3

Answer: Option A

Explanation:

The infix notation for the given prefix notation is (1+2)-3*(6/2). The result of the given equation is -6.

Workspace

NA
SHSTTON
18
Solv. Corr.
85
Solv. In. Corr.
103
Attempted
0 M:0 S
Avg. Time

76 / 93

Choose the correct option.

Which of the following statement is incorrect with respect to infix to postfix conversion algorithm?


Aoperator is placed in the stack when the stack operator has lower precedence

Boperand is always placed in the output

Chigher and equal priority operators follow the same condition

Dparenthesis are included in the output

Answer: Option D

Explanation:

Parentheses are not included in the output. They are placed in the operator stack and then discarded.

Workspace

NA
SHSTTON
83
Solv. Corr.
26
Solv. In. Corr.
109
Attempted
0 M:0 S
Avg. Time

77 / 93

Choose the correct option.

In infix to postfix conversion algorithm, the operators are associated from?


Aleft to right

Bright to left

Ccentre to right

Dcentre to left

Answer: Option A

Explanation:

In infix, prefix and postfix expressions, the operators are associated from left to right and not right to left.

Workspace

NA
SHSTTON
13
Solv. Corr.
44
Solv. In. Corr.
57
Attempted
0 M:0 S
Avg. Time

78 / 93

Choose the correct option.

What is the correct postfix expression for the following expression?

a+b*(c^d-e)^(f+g*h)-i


Aabcde^-fg*+*^h*+i-

Babc^de-fg+*^*+i-

Cab^-dc*+ef^gh*+i-

Dabcd^e-fgh*+^*+i-

Answer: Option D

Explanation:

The postfix expression for the given infix expression is found to be abcd^e-fgh*+^*+i- when we use infix to postfix conversion algorithm.

Workspace

NA
SHSTTON
26
Solv. Corr.
78
Solv. In. Corr.
104
Attempted
0 M:0 S
Avg. Time

79 / 93

Choose the correct option.

Out of the following operators (|, *, +, &, $), the one having lowest priority is ________


A$

B+

C&

D|

Answer: Option D

Explanation:

According to the algorithm (infix-prefix), it follows that the logical OR will have the lowest priority.

Workspace

NA
SHSTTON
30
Solv. Corr.
50
Solv. In. Corr.
80
Attempted
0 M:0 S
Avg. Time

80 / 93

Choose the correct option.

Given two processes (conversion of postfix equation to infix notation and conversion of prefix notation to infix notation), which of the following is easier to implement?


AConversion of postfix equation to infix equation is harder than converting a prefix notation to infix notation

BBoth are easy to implement

CInsufficient data

DConversion of postfix equation to infix equation is easier than converting a prefix notation to infix notation

Answer: Option D

Explanation:

As the conversion of prefix notation to infix notation involves reversing the equation, the latter is harder to implement than postfix to infix process.

Workspace

Data Structures Stacks Questions and Answers pdf

At Data Structures topic Stacks page No: 8 you will find list of 10 practice questions, tips/trick and shortcut to solve questions, solved questions, quiz, and download option to download the whole question along with solution as pdf format for offline practice. You can practice all the listed Data Structures Stacks topic questions offline too, by downloading the MCQs practice question of Stacks with detail solution, with formula/Tips & Tricks, with Solved examples and with top-rated users answers, which will give you best answer ascross webs. It is one of the perfect Stacks e-book pdf covering all types of questions in detail. These Data Structures test with answers pdf cover all types of question asked in IIFT, XAT, SNAP, GRE, GMAT, NMAT, CMAT, MAT or for IT companies written exam like Wipro, HCL, Infosys, Accenture, Government exams, IBPS Exams etc. There are multiple formats to download your online free Data Structures Stacks e-book, like fully solved, unsolved questions with Answers sheet. Even you can customize your ebook format by adjusting the given options in the download section to make it your one of the best Data Structures topic-based ebook. It is recommended to bookmark this page Data Structures Stacks for your preparation. Most of the students and fresher candidates finding it hard to clear the Data Structures section in exams. Here Given Stacks practice questions, quiz, fully solved questions, tips & trick and Mock tests, which include question from each topic will help you to excel in Stacks. Each test has all the basics questions to advanced questions with answer and explanation for your clear understanding, you can download the test result as pdf for further reference.

At Data Structures topic Stacks, you will get multiple online quiz difficulty wise, which will have a total of 6 quizzes, categorized as easy, medium, and moderate level. While preparing for any Stacks, take all the list quiz and check your preparation level for that topic. Each quiz have 10 different question, which needs to be answered in 20 min., all the listed quiz here is free, however, you will get only one chance for each quiz to attempt(Take Quiz seriously), so it is always recommended to take one quiz in each section before you start solving Stacks MCQs practice question, and one after solving all the question of the respective level, you can refer back your Stacks quiz result any time or you can download it as pdf for reference.

Data Structures Stacks Customize Online Mock Test

This is own type of mock test, where At this Data Structures Stacks MCQs mock test section, you will able to attempt only the questions related to Stacks, in that question will be a different level, important, and all the questions will be part of some of the mock tests across Q4interview FREE Mock test. You need to choose the topic as Stacks, and click on Double click to generate your customize mock test. While attempting the mock test you need to choose any of the one options out of given option. It is recommended to go through the direction given along with each question, as these questions will be randomly and so that same direction will not be applicable across the entire test. Once you submit your mock test, the result will be generated for Stacks Customize mock test, where your performance point points will be highlighted. Q4interview analysis every single point which helps you to improve your topic understanding and help you to know your type of mistakes and way to improve Stacks questions, by providing the same type of practice questions from practice exercise. The best part of this Stacks, all these mock tests listed here are free and you can take as Many time, as many you want. When you continue to give Stacks Customize Online Mock Test here regularly, then you will understand how much you have developed your accuracy on a topic, after that you will be able to decide how much attention you need to focus on. Your continued practice will increase your confidence, speed and thinking ability intensely, the Stacks Customize topic on which you will practice more will beneficial for you in future during campus placement.Stacks Mock Tests

Data Structures Stacks Quiz Online Test

The details of the Data Structures Stacks quiz are as follows. There are 10 questions for you. You have to answer them in 20 minutes. Within 20 minutes you have to see the errors in the sentences given as a question. Four options are also given to you, and you have to choose your opinion. You must be confident in your answer that the choices are difficult. Therefore, below we provide you with some information about Data Structures Stacks that you see and keep them in mind while answering questions.

Data Structures Stacks MCQs Practice Questions with Answer

On this Stacks section of page you will find the easiest quickest ways to solve a question, formulas, shortcuts and tips and tricks to solve various easiest methods to solve Stacks Question Quickly. It contains all the Data Structures topic Stacks questions which are common in any of the preliminary exams of any company. The solution is provided along with the questions. The practice of these questions is a must as they are easy as well as scoring and asked in all the exams They will confirm the selection if all the questions attempted wisely with little practice. It is recommanded to Take Mock test based on Data Structures topic and Stacks topic based quiz.

Data Structures Stacks solved examples question

Clarity of concepts is a must if you want to master the skill of solving Data Structures problems. This page contains sample Data Structures Stacks questions and answers for freshers and competitive exams. Stacks Questions with the detailed description, the explanation will help you to master the topic. Here solved examples with detailed answer description, explanations are given and it would be easy to understand. How to solve qStacksData Structures? Here are some examples solved with the Common Rules/tricks/tips of Data Structures. Enhance your chance to score maximum marks in Data Structures sections through. Error Spotting Grammar Questions Online Test for Free. Fully solved Sentence Formation MCQs questions with detailed answer description. Data Structures is an important topic for any exams but most aspirants find it difficult. You need to learn various tricks tips, rules, etc to solve quickly. At this page, you will find frequently asked Stacks questions or problems with solutions, shortcuts, formulas for all-important competitive exams like IT companies exams, interviews. It is always a best practice to go through the example and understand the types of question and way to solve it, so let's do some examples to calculate efficiency, read through all the given here solved examples. You can post your solution, tips, trick and shortcut if you have any in respect to questions.

You can get here fully solved Stacks examples with a detailed answer and description. You can solve Stacks problems with solutions, the questions by companies wise by filtering the questions, additionally, you can check what type of questions are being asked in IT companies Written Round from Stacks. Stacks became one of the most important sections in the entire competitive exams, Companies Campus, and entrance online test. Go through Stacks Examples, Stacks sample questions. You can Evaluate your level of preparation in Stacks by Taking the Q4Interivew Stacks Online Mock Test based on most important questions. All the Stacks practice questions given here along with answers and explanations are absolutely free, you can take any number of time any mock Test.

Why Data Structures Stacks?

In this practice section, you can practice Data Structures Questions based on "Stacks" and improve your skills in order to face the interview, competitive examination, IT companies Written exam, and various other entrance tests (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.

Where can I get Data Structures Stacks questions and answers with explanation?

Q4Interview provides you lots of fully solved Data Structures (Stacks) questions and answers with Explanation. Solved examples with detailed answer description, explanation are given and it would be easy to understand. You can download Data Structures Stacks quiz questions with answers as PDF files and eBooks.

Where can I get Data Structures Stacks Interview Questions and Answers (objective type, multiple-choice, quiz, solved examples)?

Here you can find objective type Data Structures Stacks questions and answers for interview and entrance examination. Multiple choice and true or false type questions are also provided.