Compress Consecutive Characters | Dataford Interview Questions

Given a string s, return a new string using run-length compression. Replace each group of consecutive repeated characters with the character followed by its count, but only when the count is greater than 1. The function should return the compressed string as a string.

Constraints

0 <= len(s) <= 10^5
s contains only English letters and digits
The solution should run in O(n) time

Function Signature

def compress_string(s):

Your question is Compress Consecutive Characters. 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

Constraints

0 <= len(s) <= 10^5
s contains only English letters and digits
The solution should run in O(n) time

Function Signature

def compress_string(s):

Your question is Compress Consecutive Characters. 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.