Reverse a String of Words | Dataford Interview Questions

Reverse a string of words without using any in-built function.

Asked in the Round 1 DSA stage. Implement the logic yourself, without using built-in helpers such as split(), reverse(), or slicing shortcuts that directly reverse the string.

Function Signature

def reverse_words(s):

Input

A single string s containing words separated by one or more spaces.

Output

Return a string with the words in reverse order, separated by a single space.

Constraints

1 <= len(s) <= 10^4
s contains printable characters and spaces
Words are separated by one or more spaces
The output must not contain leading or trailing spaces

Function Signature

def reverse_words(s):

Your question is Reverse a String of Words. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Reverse a string of words without using any in-built function.

Asked in the Round 1 DSA stage. Implement the logic yourself, without using built-in helpers such as split(), reverse(), or slicing shortcuts that directly reverse the string.

Function Signature

def reverse_words(s):

Input

A single string s containing words separated by one or more spaces.

Output

Return a string with the words in reverse order, separated by a single space.

Constraints

1 <= len(s) <= 10^4
s contains printable characters and spaces
Words are separated by one or more spaces
The output must not contain leading or trailing spaces

Function Signature

def reverse_words(s):

Your question is Reverse a String of Words. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.