Python Coding Challange - Question with Answer (01050725)

 

Step-by-step Explanation:

1. Original list:

   
   x = [1, 2, 3, 4, 5]
        0  1  2  3  4 ← indices

2. Slice being replaced:
   x[1:4] refers to elements at index 1, 2, and 3, i.e.:

   
   [2, 3, 4]

3. Replacement:
   You assign [20, 30] to that slice, replacing 3 elements with 2 elements. Python allows this, and the list will shrink by 1 element.

4. New list after assignment:
   Replace [2, 3, 4] with [20, 30], resulting in:

   x = [1, 20, 30, 5]

✅ Final Output:

[1, 20, 30, 5]

This works because list slicing with assignment allows the replacement slice to be of different length — Python automatically resizes the list.

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