“Bài toán con kiến” xây dựng công thức tính tổ hợp lặp

Tóm tắt

In this article, we will introduce the "Ant Problem" and use the concept of combinatorics to solve that problem, then present the concept of repeating combinations and use the results of the above problem to find a formula to calculate the number of repeating combinations. Some examples are also given to illustrate the formula.