Question

What will be the output of the following statements?

i.

list1 = [12,32,65,26,80,10]
list1.sort()
print(list1)

ii.

list1 = [12,32,65,26,80,10]
sorted(list1)
print(list1)

iii.

list1 = [1,2,3,4,5,6,7,8,9,10]
list1[::-2]
list1[:3] + list1[3:]

iv.

list1 = [1,2,3,4,5]
list1[len(list1)-1]

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Answer

Output for the given statements:

i.

list1 = [12, 32, 65, 26, 80, 10]
list1.sort()
print(list1)

Output:

[10, 12, 26, 32, 65, 80]

Explanation: The sort() method modifies list1 in place to be in ascending order.

ii.

list1 = [12, 32, 65, 26, 80, 10]
sorted(list1)
print(list1)

Output:

[12, 32, 65, 26, 80, 10]

Explanation: The sorted() function returns a new sorted list, leaving list1 unchanged.

iii.

list1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
list1[::-2]
list1[:3] + list1[3:]

Output:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Explanation: The slicing operations list1[::-2] and list1[:3] + list1[3:] do not modify list1. They produce new lists which are not assigned to any variable. So, the original list1 remains unchanged.

iv.

list1 = [1, 2, 3, 4, 5]
list1[len(list1)-1]

Output:

5

Explanation: list1[len(list1)-1] returns the last element of list1, which is 5.


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