## LeetCode Pyramid Transition Matrix

https://leetcode.com/problems/pyramid-transition-matrix/ We are stacking blocks to form a pyramid. Each block has a color which is a one letter string. We are allowed to place any color block C on top of two adjacent blocks of colors A and B, if and only if ABC is an allowed triple. We start with a bottom row of bottom, represented as a single string. We also start with a list of allowed triples allowed....