Find the Lexicographically Largest String From Box II

Explore how to efficiently find the lexicographically largest substring by splitting a string uniquely into multiple parts using the two pointers approach. Understand the problem constraints and strengthen your skills in handling string manipulations relevant to coding interviews.

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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 the lexicographically largest string among all the substrings in the box.

A string $a$ is considered lexicographically larger than a string $b$ ...