Python Coding Challange - Question with Answer (01240425)

 

Python code line by line:

import array as arr

• This imports Python's built-in array module and gives it the alias arr.

• The array module provides a space-efficient array data structure (like a list but with a fixed type).

nums = arr.array('b', [5, -2, 7, 0, 3])

• This creates an array named nums.

• 'b' means the array will store signed integers (1 byte each, ranging from -128 to 127).

• The array initially contains: [5, -2, 7, 0, 3].

nums.remove(-2)

• This removes the first occurrence of -2 from the array.

• Now the array becomes: [5, 7, 0, 3].

print(nums.index(3))

• This prints the index of the first occurrence of the value 3 in the array.

• Since 3 is now at index 3 (0-based index), it prints: 3.

Final Output:

3

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