c语言最基本的联系，鸡兔同笼。一共有几只头几只脚算笼中鸡与兔的个数。-c basic language contact, chickens and rabbits with cage. The number of chicken and rabbit cage a few feet, a total of a few head count.

1.需求分析 本题要求循环数数，数到某一个数之后将其排除并从下一个开始重新开始数数，直到剩下一个人为止，要求剩下的人标号为1。我组有两份代码，第一个程序中，输入n值，并数的数至多为3p（p为前n个数最小公倍数，3p为了能够找到规律，n>=7时由于最小周期过大在下面的表格中不便列举），将每种可能的x,y值分组罗列出来，并试图从中找出规律，一旦规律出现，那么我们可以随意举一个符合规律的其他例子来进行验证（验证代码为另一份，而且验证的时候y不再有范围限制，只要符合规律即可） 2.概要设计

= Head Counter = The aim of this software is to be able to count the number of people present in a crowd, especially in protests, and provide an estimate as accurate as possible. This software is currently at a very early stage. Compilation ==