Week 2 Quiz

Due date: 2022-08-10, 23:59 IST.

Your last recorded submission was on 2022-08-09, 21:54 IST

All questions carry equal weightage. All Python code is assumed to be executed using Python3. You may submit as many times as you like within the deadline. Your final submission will be graded.

Note:

If the question asks about a value of type string, remember to enclose your answer in single or double quotes.
If the question asks about a value of type list, remember to enclose your answer in square brackets and use commas to separate list items.

One of the following 10 statements generates an error. Which one? (Your answer should be a number between 1 and 10.)

x = [[3,5],"mimsy",2,"borogove",1]  # Statement 1
y = x[0:50]                          # Statement 2
z = y                                # Statement 3
w = x                                # Statement 4
x[1] = x[1][:5] + 'ery'              # Statement 5
y[1] = 4                             # Statement 6
w[1][:3] = 'fea'                     # Statement 7
z[4] = 42                            # Statement 8
x[0][0] = 5555                       # Statement 9
a = (x[3][1] == 1)                   # Statement 10

Ans: 7

2.5 points

Consider the following lines of Python code.

b = [43,99,65,105,4]
a = b[2:]
d = b[1:]
c = b
d[1] = 95
b[2] = 47
c[3] = 73

Which of the following holds at the end of this code?

a[0] == 47, b[3] == 73, c[3] == 73, d[1] == 47

a[0] == 65, b[3] == 105, c[3] == 73, d[1] == 95

a[0] == 65, b[3] == 73, c[3] == 73, d[1] == 95

a[0] == 95, b[3] == 73, c[3] == 73, d[1] == 95

What is the value of endmsg after executing the following lines?

startmsg = "anaconda"
endmsg = ""
for i in range(1,1+len(startmsg)):
  endmsg = endmsg + startmsg[-i]

Ans: "anaconda"

2.5 points

What is the value of mylist after the following lines are executed?

def mystery(l):
  l = l[2:]
  return(l)

mylist = [7,11,13,17,19,21]
mystery(mylist)

Ans: [7,11,13,17,19,21]

2.5 points

You may submit any number of times before the due date. The final submission will be considered for grading.

NPTEL: Programming , Data Structures and Algorithms Using Python Week 2 Quiz answer with proof

netaji gandi Tuesday, August 9, 2022

Week 2 Programming Assignment

Write three Python functions as specified below. Paste the text for all three functions together into the submission window. Your function will be called automatically with various inputs and should return values as specified. Do not write commands to read any input or print any output.

You may define additional auxiliary functions as needed.
In all cases you may assume that the value passed to the function is of the expected type, so your function does not have to check for malformed inputs.
For each function, there are normally some public test cases and some (hidden) private test cases.
"Compile and run" will evaluate your submission against the public test cases.
"Submit" will evaluate your submission against the hidden private test cases. There are 10 private test cases, with equal weightage. You will get feedback about which private test cases pass or fail, though you cannot see the actual test cases.
Ignore warnings about "Presentation errors".

Write a function intreverse(n) that takes as input a positive integer n and returns the integer obtained by reversing the digits in n.
Here are some examples of how your function should work.
```
>>> intreverse(783)
387
>>> intreverse(242789)
987242
>>> intreverse(3)
3
```
Write a function matched(s) that takes as input a string s and checks if the brackets "(" and ")" in s are matched: that is, every "(" has a matching ")" after it and every ")" has a matching "(" before it. Your function should ignore all other symbols that appear in s. Your function should return True if s has matched brackets and False if it does not.
Here are some examples to show how your function should work.
```
 
>>> matched("zb%78")
True
>>> matched("(7)(a")
False
>>> matched("a)*(?")
False
>>> matched("((jkl)78(A)&l(8(dd(FJI:),):)?)")
True
```
Write a function sumprimes(l) that takes as input a list of integers l and retuns the sum of all the prime numbers in l.
Here are some examples to show how your function should work.
```
>>> sumprimes([3,3,1,13])
19
>>> sumprimes([2,4,6,9,11])
13
>>> sumprimes([-3,1,6])
```

Answer Code:

def intreverse(n):
ans = 0
while n > 0:
(d,n) = (n%10,n//10)
ans = 10*ans + d
return(ans)

def matched(s):
nested = 0
for i in range(0,len(s)):
if s[i] == "(":
nested = nested+1
elif s[i] == ")":
nested = nested-1
if nested < 0:
return(False)
return(nested == 0)

def factors(n):
factorlist = []
for i in range(1,n+1):
if n%i == 0:
factorlist = factorlist + [i]
return(factorlist)

def isprime(n):
return(factors(n) == [1,n])

def sumprimes(l):
sum = 0
for i in range(0,len(l)):
if isprime(l[i]):
sum = sum+l[i]
return(sum)

Programming Data Structures And Algorithms Using Python Coding Assignment 2 Answers 2022 Week 2 Programming Assignment

netaji gandi

TCS Question Paper pattern

Download

Get familiar with these sections and practice them with below click on TEST

Please note

The source of this table is TCS’s official mock link.
Regarding the 6th group, i.e., advanced coding, the mock link has only one question, but there have been instances where applicants were given two questions to solve in the same time duration in the actual test.

The TCS digital exam pattern may be challenging, but with ample practice and the right guidance, you can crack it. Let’s take a brief look at each section and find out what you’ll need to cover to prepare well.

1. English and Verbal Ability

This section will consist of ten questions that ought to be solved in fifteen minutes. In the mock link, the questions draw from beginner-level topics like:

Verbs and prepositions
Identifying the error in the sentence
Identifying the correct sequence of sentences
Synonyms and antonyms of difficult words, etc.

There have also been instances where the questions only involve passage comprehensions. The usual theme of the passage would be on digital technologies like:

Artificial intelligence
Machine learning
Deep learning, NLP
Cloud computing
Computer vision
Blockchain
Virtual reality
Resources for English and verbal ability section
- All About Words by Morris Rosenblum, Maxwell Nurnberg
- Word Power Made Easy by Norman Lewis
2. Quantitative Aptitude
This section requires you to solve 12 questions within 30 minutes. Hence you should focus on developing a solid grasp of concepts and the ability to think of a solution in a limited time.
This can be attained only through practice. So you can leverage any practice material you get your hand on, some of which we’re listing below:
Resources for quantitative aptitude section
- Fast Track Objective Arithmetic
- Quantitative Aptitude for Competitive Examinations
- Other Youtube channels dealing with the topic
3. Lateral Thinking
This section will consist of lots of brainteasers, and it entirely depends on how much laterally can you think. There’s a vast difference between thinking horizontal, vertical, or even logical – here’s how.
The questions could involve anything—could be a rebus, finding the missing link, identifying the correct pattern—basically any brainteaser you can think of.
The standard questions in the actual test will be pretty much the same as shown in the mock link. You’ll be given half an hour to solve seven questions. So try to attempt as many questions as possible in the time frame.
Useful resources for lateral thinking section:

4. Agility

This section will contain two questions that need to be solved in twenty-five minutes. If you check the mock link:

The first question is an API-based program in JAVA
The second question is an exhaustive comprehension of a mathematical concept/ leading tech. They’ll ask you to analyse the passage thoroughly and draw inferences.

However, the first question can be replaced by a new language in the actual exam. Moreover, they could change the theme or topic of the comprehension. It requires you to be aware of the latest and upcoming technologies in the digital world.

Useful resource for agility section:

How to use Java APIs

5. Programming Logic

Recursion, arrays, stacks, queues, linked lists, trees, binary search trees, binary heaps, graphs — CSE geeks will already be familiar with the topics of these sections. You will have 20 minutes to solve 7 questions.

To excel in this section, you must know

Data structures and their implementations.
Standard algorithms with their space and time complexities.

Useful resources for programming logic section

6. Advanced Coding

This section will be an hour-long coding round—It could consist of one or two programs to solve in the same time constraint. The difficulty level of the same will depend on the number of questions given.

If you’re given a single question, it will probably be of the same standard as CodeVita round 1 questions, otherwise, if you’re given two questions, the difficulty level will certainly decline.

Languages allowed: C, C++, Java, Python 2.7, Perl. (These languages may change over time).

TCS Question Paper pattern

netaji gandi

Week 2 : Programming Assignment 1

Complete the code segment to call the method print() of class Student first and then call print() method of class School.

// This is the class named School

class School {

// This is a method in class School

public void print() {

System.out.println("Hi! I class SCHOOL.");

}

// This is the class named Student

class Student {

// This is a method in class Student

public void print() {

System.out.println("Hi! I am class STUDENT");

}

public class Question21{

public static void main(String args[]){

Student s=new Student();

s.print();

School s1=new School();

s1.print();

}

Week 2 : Programming Assignment 2

Complete the code segment to call the method print() of class given class Printer to print the following.

--------------------------------

Hi! I am class STUDENT

Hi! I class SCHOOL.
--------------------------------

// This is the class named Printer

class Printer {

// This are the methods in class Printer

public void print() {

System.out.println("Hi! I class SCHOOL.");

}

public void print(String s) {

System.out.println(s);

}

public class Question22{

public static void main(String[] args) {

Printer p=new Printer();

p.print("Hi! I am class STUDENT");

p.print();

}

Week 2 : Programming Assignment 3

Complete the code segment to call print() method of class Question by creating a method named ‘studentMethod()’.

// This is the main class Question

public class Question23{

public static void main(String[] args) {

// Object of the main class is created

Question23 q = new Question23();

// Print method on object of Question class is called

q.studentMethod();

}

// 'print()' method is defined in class Question

void print(Question23 object){

System.out.print("Well Done!");

}

public void studentMethod()

{

print(this);

}

Week 2 : Programming Assignment 4

Complete the code segment to call default constructor first and then any other constructor in the class.

// This is the main class Question

public class Question214{

public static void main(String[] args){

Answer a = new Answer(10,"MCQ");

}

class Answer{

Answer(){

System.out.println("You got nothing.");

}

Answer(int marks, String type){

this();

System.out.println("You got "+marks+" for an "+ type);

}

Week 2 : Programming Assignment 5

Complete the code segment to debug / complete the program which is intended to print 'NPTEL JAVA'.

public class Question215{
public static void main(String[] args) {

String nptel, space, java;

nptel= "NPTEL";
space= " ";
java= "JAVA";

System.out.print(nptel+space+java);
}
}