josexx.cpp

来自「本文档是（作者：钱能）《C＋＋程序设计教程》系列的部分辅助代码。 选题编辑：张」· C++ 代码 · 共 51 行

//*********************
//**    josexx.cpp    **
//*********************

#include <iostream.h>
#include "ring.h"         //告诉编译，本文件中将使用Ring
#include "josexx.h"

void Jose::Initial()
{
  int num,begin,m,w;
  cout <<"please input the number of boys,\n" \
         "begin position,interval per count :\n" \
         "number of winners :\n";
  cin >>num >>begin >>m>>w;
  if(num<2){
    cerr<<"bad number of boys\n";
    return;
  }
  if(begin<0){
    cerr<<"bad begin position.\n";
    return;
  }
  if(m<1||m>num){
    cerr<<"bad interval number.\n";
    return;
  }
  if(w<1||w>=num){
    cerr <<"bad number of winners.\n";
    return ;
  }
  //输入数据都合法时，予以赋值
  numOfBoys = num;
  beginPos = begin;
  interval = m;
  wins = w;
}

void Jose::GetWinner()
{
  Ring x(numOfBoys);     //小孩围成圈
  x.Count(beginPos);     //转到开始位置
  for(int i=1; i<numOfBoys-wins+1; i++){      //处理除了获胜者之外的所有小孩
    x.Count(interval);   //数小孩
    x.PutBoy();          //输出小孩编号
    x.ClearBoy();        //当前小孩脱离环链
  }
  cout <<"\nthe winner is ";
  x.Display();   //获胜者
}