Solution: Partition Labels
Explore how to solve the Partition Labels problem by using a two pointers approach combined with a last occurrence map. Learn to identify the correct partition boundaries in a string so that each character appears in at most one partition. Understand how to efficiently implement this linear time and constant space solution to solve string partitioning problems.
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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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