Python Coding Challange - Question with Answer (01090625)

 

 List:

Index:  0   1   2   3   4
Value: [1, 2, 3, 4, 5]

 arr[1:4:2] — What it means:

This is list slicing using the format:

[start : stop : step]

• Start = 1 → Start at index 1 (2)

• Stop = 4 → Stop before index 4 (so last included is index 3)

• Step = 2 → Take every 2nd element

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✅ Slicing Steps:

1. Start at index 1 → value is 2

2. Next step: skip 1 and move to index 3 → value is 4

3. Index 5 would be next, but stop is at 4 → stop slicing

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🔹 Final result:

[2, 4]

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✅ Output:

[2, 4]

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