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Grokking the Coding Interview Patterns in Python

Solution: Find the Lexicographically Largest String From Box II

Discover how to apply the two pointers strategy to identify the lexicographically largest substring generated by splitting a string into multiple unique parts. This lesson teaches you to optimize comparisons by skipping redundant checks and handling edge cases, achieving an efficient linear time solution.

We'll cover the following...

Statement

You are given a string, word, and an integer numFriends, representing the number of friends participating in a game organized by Alice.

The game consists of multiple rounds, and in each round:

  • The string word is split into exactly numFriends non-empty substrings.

  • The split must be unique; no previous round has produced the same sequence of splits.

  • All resulting substrings from the split are placed into a box.

When all rounds are over and all possible unique splits have been performed, determine ...