Reverse a String with Slicing

Easy ⏱ 8 min 82% acceptance ★★★★☆ 4.2

Write a function reverse_string(s) that returns the reverse of the string s using slicing only — no loops, no reversed(), no .reverse(). This is the fastest, most Pythonic way to flip a string.

Examples

Example 1

Input

s = 'hello'

Output

'olleh'

Explanation

Extended slicing with a step of -1 walks the string backwards.

Example 2

Input

s = 'DataVix'

Output

'xiVataD'

Explanation

Works for any string, including mixed case.

Constraints

0 <= len(s) <= 10^5
Must use slice notation, not a loop or built-in reverse.

Topics

StringsSlicing

Companies

AmazonTCSInfosys

Hints

Hint 1

`s[::-1]` reads the string from end to start.

Hint 2

The step argument of a slice can be negative.

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