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php猴子选大王问题解决方法,猴子大王
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php猴子选大王问题解决方法,猴子大王

Jun 13, 2016 am 09:04 AM
php recursion question

php猴子选大王问题解决方法,猴子大王

本文实例讲述了php猴子选大王问题解决方法。分享给大家供大家参考。具体分析如下:

问题描述:

一群猴子排成一圈,按1,2,...,n依次编号。然后从第1只开始数,数到第m只,把它踢出圈,从它后面再开始数,再数到第m只,在把它踢出去...,如此不停的进行下去,直到最后只剩下一只猴子为止,那只猴子就叫做大王。要求编程模拟此过程,输入m、n,
输出最后那个大王的编号。

解决方法:

<&#63;php
function king($m, $n) {
 for($i = 1;$i < $m + 1;$i++) {
 //构建数组
  $arr[] = $i;
 }
 $i = 0;//设置数组指针
 while (count($arr) > 1) {
  //遍历数组,判断当前猴子是否为出局序号,
  //如果是则出局,否则放到数组最后
  if (($i + 1) % $n == 0) {
   unset($arr[$i]);
  } else {
   array_push($arr, $arr[$i]);
   //本轮非出局猴子放数组尾部
   unset($arr[$i]);
   //删除
  }
  $i++;
 }
 return $arr;
}
var_dump(king(100,5));
&#63;>
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希望本文所述对大家的php程序设计有所帮助。

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