NPTEL The Joy of Computing using Python Assignment Answers Week 3 2023

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NPTEL The Joy of Computing using Python Assignment Answers Week 3

Q1. ___________ is the method to insert an item into a specified position in a list.

Answer: c. Insert

Q2. Which method returns the number of occurrences of an element in a list.

Answer: c. Count

Q3. The function random.randint(1,100) in python generates.

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

Q4. The method open(“file1.txt”, r+) opens the file file1.txt in _____

Answer: c. Read Write mode

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]?

Answer: a. [2, 3, 5]

Q6. What is the output of this code?

a, b=1,0
a=a^b
b=a^b
a=a^b
print(a)

Answer: a. 0

Q7. What is the output of the following code?

def foo(l):
a = l[0] 
for i in l: 
if i < a: 
 a = i
return a
print (foo([2, 3, 5, 1, 7, 6]))

Answer: 1

Q8. What is the output of the following code?

def bar(string):
left = 0
right = len(string) - 1
while(left < right):
if(string[left] != string[right]):
	return False
           left += 1
           right -= 1
return True
print(bar("telugu"))
print(bar("malayalam"))

Answer: a. False True

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

def func(list1):
while (len(list1) > 2):
k=list1 [0]
for i in list1:
if k<i:
k=i
list1.remove (k)
j=list1[0]
for i in list1:
if j>i:
j=i
list1.remove (j)
return list1
list2=func ([1,4,3,6,5,3,7,8,9,4])
#sum is a function which returns the sum of all of the values of all the elements of a list
print(sum(list2)/len (list2))

Answer: d. 4.5

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

count = 0
for i in range(10):
for j in range(5):
count += i *j
print(count)

Answer: d. count=450

The Joy of Computing using Python Programming Assignment Answers

Q1.

N=int(input())
for i in range(1,N+1):
    for j in range(1,i+1):
         print("* ",end="")
    if j!=N:     
         print()

Q2.

N=int(input())
L=[0,1]
if N==1:
  print(0)
elif N==2:
  print(0)
  print(1)
else:  
  print(0)
  print(1)
  for i in range(N-2):
    if i==N-3:
      print(L[-1]+L[-2],end="")
    else:
      print(L[-1]+L[-2])
    L.append(L[-1]+L[-2])

Q3.

B=int(input())
H=int(input())
for i in range(H):
  for j in range(B):
    print('*',end="")
  if i!=H-1:  
    print()  

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