Python Coding Challenge - Question with Answer (ID -100326)

 

1️⃣ List Creation

x = [1,2,3]

This creates a list named x containing three elements:

[1, 2, 3]

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2️⃣ List Slicing

x[::-1]

This uses Python slicing syntax:

list[start : stop : step]

Here:

start = default (beginning)
stop  = default (end)
step  = -1

A step of -1 means move backward through the list.

So Python reads the list from end to start.

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3️⃣ Reversing the List

Original list:

[1, 2, 3]

Reading backward:

[3, 2, 1]

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4️⃣ Print Statement

print(x[::-1])

This prints the reversed list.

✅ Final Output

[3, 2, 1]

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🔥 Important Point

[::-1] is a Python shortcut to reverse a list, string, or tuple.

Example:

text = "python"
print(text[::-1])

Output:

nohtyp

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