★　　问题描述

给定含有n个元素的多重集合S，每个元素在S中出现的次数称为该元素的重数。多重

集合S中重数最大的元素称为众数。例如，S={1,2,2,2,3,5}。多重集合S的众数是2，其重数是3。

-★ Descr iption of the problem given n elements contains a collection of multi-S, each element appearing in the number of S is called the multiplicity of elements. Multiple re-collection of S in the largest number of elements known as the plural. For example, S = (1,2,2,2,3,5). Multiple collections of plural S is 2, its multiplicity is 3.