Find the Lexicographically Largest String From Box II

Explore how to solve problems involving unique splits of strings into multiple substrings and identify the lexicographically largest substring. Learn to apply the two pointers technique efficiently to handle string manipulation and optimization tasks by analyzing problem constraints and implementing solutions in C++.

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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 $b$ ...