Reverse a String In Place

Reverse the characters of a string and return the reversed result. Aim for a linear-time solution; a two-pointer implementation is preferred, and you can discuss a recursive alternative.

Inputs = "hello"Output"olleh"WhyCharacters are reversed from end to start.

Inputs = "racecar"Output"racecar"WhyA palindrome remains the same after reversal.

Problem

Reverse the characters of a string and return the reversed result. Aim for a linear-time solution; a two-pointer implementation is preferred, and you can discuss a recursive alternative.

Examples

Example 1

Inputs = "hello"Output"olleh"WhyCharacters are reversed from end to start.

Example 2

Inputs = "racecar"Output"racecar"WhyA palindrome remains the same after reversal.

Constraints

`0 <= len(s) <= 10^5`
`s` contains printable ASCII characters
Return a new reversed string

Problem

Reverse the characters of a string and return the reversed result. Aim for a linear-time solution; a two-pointer implementation is preferred, and you can discuss a recursive alternative.

Examples

Example 1

Inputs = "hello"Output"olleh"WhyCharacters are reversed from end to start.

Example 2

Inputs = "racecar"Output"racecar"WhyA palindrome remains the same after reversal.

Constraints

`0 <= len(s) <= 10^5`
`s` contains printable ASCII characters
Return a new reversed string

Problem

Reverse the characters of a string and return the reversed result. Aim for a linear-time solution; a two-pointer implementation is preferred, and you can discuss a recursive alternative.

Examples

Example 1

Inputs = "hello"Output"olleh"WhyCharacters are reversed from end to start.

Example 2

Inputs = "racecar"Output"racecar"WhyA palindrome remains the same after reversal.

Constraints

`0 <= len(s) <= 10^5`
`s` contains printable ASCII characters
Return a new reversed string

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Reverse a String In Place

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Examples

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