Question

10. What is the difference between:
(i) append() and insert()
(ii) remove() and pop

(iv) list and tuple​

Answer 1

1. append() and insert()

• append() adds elements/lists to a given list.
• insert() adds elements at the specified index position mentioned in the syntax.

2. remove() and pop()

• remove() removes the first occurrence of a specified element.
• pop() removes the element from the specified index position and returns the value.

Examples of their usage:

• append()

>>> L = ["Hello", "there", 82, 10, 66, "welcome", 4]

>>> L.append("python")

>>> L

['Hello', 'there', 82, 10, 66, 'welcome', 4, 'python']

• insert()

>>> L = ["Hello", "there", 82, 10, 66, "welcome", 4]

>>> L.insert(2, 56)

>>> L

['Hello', 'there', 56, 82, 10, 66, 'welcome', 4]

• remove()

>>> L = ["Hello", "there", 82, 10, 66, 66, 78 "welcome", 4]

>>> L.remove(66)

>>> L

['Hello', 'there', 56, 82, 10, 66, 78, 'welcome', 4]

• pop()

>>> L = ["Hello", "there", 82, 10, 66, "welcome", 4]

>>> L.pop(3)

10

>>> L

['Hello', 'there', 82, 66, 'welcome', 4]

Answer 2

a = int(input("Enter an integer: "))

b = int(input("Enter a second interger: "))

c = int(input("Enter a third integer: "))

s = a + b + c

print()

print(s, "is the sum of the three integers.")

avg = (a + b + c)//3

print(avg, "is the average of the three integers.")

if s > avg:

d = s - avg

print(d, "is the difference between the sum and the average.")

elif avg > s:

d = avg - s

print(d, "is the difference between the sum and the average.")