Python Coding Challange - Question with Answer (01161025)

 

Step 1: Understand the list

a is a nested list:

a = [1, [2, 3], 4]

It has 3 elements:

• a[0] → 1

• a[1] → [2, 3] ← this is another list inside a

• a[2] → 4

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 Step 2: Access a[1]

a[1] gives the second element, which is the inner list [2, 3].

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Step 3: Access a[1][0]

Now, we go inside that inner list:

• a[1][0] → first element of [2, 3]

• Result → 2

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✅ Output:

2
In short:

a[1][0] means:

From list a, take the second element (which is [2, 3]), then take the first element from that inner list → 2.

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