Counting Problem of Non-adjacent Line Permutation and Circle Permutation of Same Category Elements
Yuyan Zhu · Journal of Hefei University · 2015
Set category 1with m1 elements,category 2with m2 elements,…,category n with mn elements,and make an permutation in which same category elements are non-adjacent.We use polynomial recursion formula to give the number of different line permutation and circle permutation,and give the counting formula for the number of different line permutation and circle permutation whether the same category elements contains identical elements or not.