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Grokking the Coding Interview Patterns in JavaScript

Solution: Find the Lexicographically Largest String From Box II

Explore how to determine the lexicographically largest substring from multiple unique splits of a string using the two pointers method. This lesson helps you understand efficient string manipulation techniques, character-by-character comparisons, and optimization strategies to solve the problem in linear time with constant space complexity.

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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 ...