Solution: Partition Labels
Explore how to solve the Partition Labels problem by applying the two pointers technique to split a string into the maximum number of parts without repeating characters across partitions. Understand how to track the last occurrence of characters and update partition boundaries effectively to achieve optimal results with linear time and constant space complexity.
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Statement
You are given a string s. Your task is to divide the string into as many parts as possible such that each letter appears in at most one part.
In other words, no character should occur in more than one partition. After concatenating all parts in order, the result should be the original string s.
For example, given s = "bcbcdd", a valid partition is ["bcbc", "dd"]. However, partitions like ["bcb", "cdd"] or ["bc", "bc", "dd"] are invalid because some letters appear in multiple parts.
Return a list of integers representing the sizes of these partitions.
Constraints:
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