Letter Tile Possibilities
Understand how to find the number of unique sequences that can be formed from letter tiles using subsets and permutations concepts. Learn to apply these patterns effectively in C# and enhance problem-solving skills for coding interviews.
We'll cover the following...
We'll cover the following...
Statement
You are given a string, tiles, consisting of uppercase English letters. You can arrange the tiles into sequences of any length (from 1 to the length of tiles), and each sequence must include at most one tile, tiles[i], from tiles.
Your task is to return the number of possible non-empty unique sequences you can make using the letters represented on tiles[i]. ...