strtok Implementation | Dataford Interview Questions

Implement strtok.

Asked in the Onsite stage. Completed in 25 minutes of the allotted 45 minutes, but interviewer expected a second question.

Write a function that behaves like strtok for a single input string: each call returns the next token from s, split by any character in delimiters, and returns None after the last token. Consecutive delimiters are treated as one separator, and leading or trailing delimiters do not produce empty tokens.

Function Signature

def strtok(s, delimiters):

Input

s: a string to tokenize
delimiters: a string containing delimiter characters

Output

Return the next token as a string, or None when no tokens remain

Constraints

0 <= len(s) <= 10^4
0 <= len(delimiters) <= 100
s and delimiters contain ASCII characters only
Repeated calls may be made with the same input string
Return None after the final token

Function Signature

def strtok(s, delimiters):

Your question is strtok Implementation. 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

Implement strtok.

Asked in the Onsite stage. Completed in 25 minutes of the allotted 45 minutes, but interviewer expected a second question.

Function Signature

def strtok(s, delimiters):

Input

s: a string to tokenize
delimiters: a string containing delimiter characters

Output

Return the next token as a string, or None when no tokens remain

Constraints

0 <= len(s) <= 10^4
0 <= len(delimiters) <= 100
s and delimiters contain ASCII characters only
Repeated calls may be made with the same input string
Return None after the final token

Function Signature

def strtok(s, delimiters):

Your question is strtok Implementation. 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.