### The Joy of Computing using Python | Week 3

Session Jan-Apr 2023

Course Name:  The Joy of Computing using Python

These are answers of The Joy of Computing using Python Assignment 3 Answers

#### Q1. _____ is the method to insert an item into a specified position in a list.a. Pushb. Writec. Insertd. All of the above

Q2. Which method returns the number of occurrences of an element in a list.
a. Number of
b. Total
c. Count
d. Length

Q3. The function random.randint(1,100) in python generates.
a. A random integer between 1 to 100 with 1 and 100 both inclusive
b. A random integer between 1 to 100 with 1 and 100 both exclusive
c. A random integer between 1 to 100 with only 100 inclusive
d. None of the above

Answer: a. A random integer between 1 to 100 with 1 and 100 both inclusive

These are answers of The Joy of Computing using Python Assignment 3 Answers

Q4. The method open(“file1.txt”, r+) opens the file file1.txt in ______.
b. Write only mode
d. None of the above

Q5. Consider the list L= [0, 1, 1, 2, 3, 5, 8, 13, 21, 34]. What will be the output of the statement L [3:6]?
a. [2, 3, 5]
b. [0, 1, 1]
c. [1, 2, 3]
d. none

Q6. What is the output of this code?

a. 0
b. 1
c. 2
d. This code will raise a runtime error

These are answers of The Joy of Computing using Python Assignment 3 Answers

Q7. What is the output of the following code?

Q8. What is the output of the following code?

a. False True
b. True False
c. True True
d. False False

Q9. Explain what the output will be when the code given below is executed.

a. The program throws an error
b. 5
c. 5.5
d. 4.5

These are answers of The Joy of Computing using Python Assignment 3 Answers

Q10. Which among the following statements is True with respect to the code given below?

a. count=50
b. The following code throws up an error.
c. count=550
d. count=450

### The Joy of Computing using Python Programming Assignmnet

Question 1

Take an input N as an integer and write a program to display a right angle triangle with N rows and N columns.
Input
5

Solution:

``````num = int(input())
k = 1
for i in range(0, num):
for j in range(0, k):
print("* ", end="")
k = k + 1
print()``````

These are answers of The Joy of Computing using Python Assignment 3 Answers

Question 2

Write a program to take an input N and print Fibonacci sequence till N terms.
The Fibonacci sequence is a set of integers (the Fibonacci numbers) that starts with a zero, followed by a one, then by another one, and then by a series of steadily increasing numbers. The sequence follows the rule that each number is equal to the sum of the preceding two numbers.
Input
7
Output
0
1
1
2
3
5
8
Explanation: since the input is 7 there are seven terms. The first two terms are always 0 and 1. The third term is sum of first two terms. The fourth term is sum of second and third terms and so on.

Solution:

``````# Python program to display the Fibonacci sequence
n = int(input())
def recur_fibo(n):
if n <= 1:
return n
else:
return(recur_fibo(n-1) + recur_fibo(n-2))

# check if the number of terms is valid
if n <= 0:
print("Plese enter a positive integer")
else:
for i in range(n):
print(recur_fibo(i))``````

These are answers of The Joy of Computing using Python Assignment 3 Answers

Question 3

Take base B and height H as an input and write a program to print a parallelogram.
Input
8
4
Output
********
********
********
********

Solution:

``````B = int(input())
H = int(input())

for i in range(H):
print("*" * B)``````

These are answers of The Joy of Computing using Python Assignment 3 Answers

More Nptel courses: https://progiez.com/nptel/

Session JUL-DEC 2022

#### These are answers of The Joy of Computing using Python Assignment 3 Answers

Q1. Which of the following statements describes the challenge ‘Fizz Buzz’?

a. Multiples of 3 should print buzz, multiples of 5 should print fizz, and multiples of 3 and 5 should print fizz buzz.
b. Multiples of 3 should print fizz, multiples of 5 should print buzz, and multiples of 3 or 5 should print fizz buzz.
c. Multiples of 3 should print fizz, multiples of 5 should print buzz, and multiples of 3 and 5 should print fizz buzz.
d. Multiples of 3 should print buzz, multiples of 5 should print fizz, and multiples of 3 and 5 should print fizz buzz.

Answer: c. Multiples of 3 should print fizz, multiples of 5 should print buzz, and multiples of 3 and 5 should print fizz buzz.

These are answers of The Joy of Computing using Python Assignment 3 Answers

Q2. random.randint(1,100) will generate a number _________.(assume random is imported)
a. Between 1,100 both inclusive.
b. Between 1,100 both exclusive.
c. Between 1,100 only 100 inclusive.
d. Between 1,100 only 1 inclusive.

Answer: a. Between 1,100 both inclusive.

Q3. Consider a string of 20 digits initialized with all zeros as a DNA sequence, in the context of lectures, updating a random ‘zero’ as ‘one’ implies ___.
a. Updating a random number
b. Evolution
d. Increase

These are answers of The Joy of Computing using Python Assignment 3 Answers

Q4. Which of the following method is correct to add an element at a specific position?
a. insert()
c. append()
d. index()

Q5. What will be the output of the following program?
a. Python, C++, Java, Kotlin
b. 0, 1, 2, 3
c. 0, 1, 2, 3, 4
d. Python, C++, Java

Answer: b. 0, 1, 2, 3

Q6. Which of the following methods is correct to count the number of instances on an element in a list?
a. total()
b. sum()
c. count()
d. numberof()

These are answers of The Joy of Computing using Python Assignment 3 Answers

Q7. In the Fizz Buzz game, What will be the output if the number is 285?
a. Fizz
b. Buzz
c. Fizz Buzz
d. No output

Q8. Which of the following keywords is used to define a function in python?
a. func
b. function
c. define function
d. def

Q9. Which of the following statements are true about crowd-sourcing?

These are answers of The Joy of Computing using Python Assignment 3 Answers

Q10. Which of the following commands is not correct in order to generate a graph?

a. import matplotlib.pyplot as plt plt.plot([1,2,3,4],[5,6,7,8],to)

b. import matplotlib.pyplot as plt plt.plot([1,2,3,4],[5,6,7,8],r–)

c. import matplotlib.pyplot as plt plt.plot([1,2,3,4],[5,6,7,8],bs)

d. import matplotlib.pyplot as plt plt.plot([1,2,3,4],[5,6,7,8],r—)

## Python Assignment 3 Programming Solutions

Question 1

There is list L containing some numbers. Write a program to create a new list which contains the numbers which are either divisible by 5 or 7 or both. Print that new list in ascending order.

Input is already managed for you.

Input : A list L

Output : A new list P

Example Input : I [7, 8, 9, 10, 11]

Output : [7, 10]

Solution:

``````L = [int(i) for i in input().split()]

ans = [z for z in L if z%5==0 or z%7==0]
print(sorted(ans), end = "")``````

These are answers of The Joy of Computing using Python Assignment 3 Answers

Question 2

Write a function rev which takes a list L and integer n and print the first n largest numbers of the list.

Input is managed for you, please write the required function only.

Input : A list L and an integer n.

Output : First n largest numbers

Solution:

``````def rev(L,n):
print(sorted(L)[::-1][:n], end = "")``````

These are answers of The Joy of Computing using Python Assignment 3 Answers

Question 3

Write a program to count and print the number of odd numbers in a list L.

Input is managed for you.

Input : A list L

Output : Total number of odd numbers.

Solution:

``````L = [int(i) for i in input().split()]
even_count, odd_count = 0, 0

# iterating each number in list
for num in L :

# checking condition
if num % 2 != 0 :
odd_count += 1

print (odd_count, end = "")``````

These are answers of The Joy of Computing using Python Assignment 3 Answers

These are answers of The Joy of Computing using Python Assignment 3 Answers

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