Python String Splitting | Dataford Interview Questions

Collins Aerospace Pro Line Fusion diagnostic logs may contain repeated multi-character separators. Implement a function that separates a string immediately after the kth occurrence of a specified separator.

The separator itself must not appear in either returned part. Return the text before the kth occurrence and the remaining text after it. Occurrences are counted from left to right, starting at 1. If the separator occurs fewer than occurrence times, return [text, ""].

Formal Specification

Implement split_at_occurrence(text, separator, occurrence).

Input: text and separator are strings, and occurrence is a positive integer.
Output: a two-element list [left, right] containing strings.
The split occurs at the start of the requested occurrence, and the complete separator is removed.
The separator may contain multiple characters.

Constraints

1 <= len(text) <= 10^5
1 <= len(separator) <= len(text)
occurrence >= 1
Matching is case-sensitive
Overlapping matches are not counted separately

Function Signature

def split_at_occurrence(text, separator, occurrence):

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