2.cpp

支持多个进程并发运行的简单进程管理模拟系统。本系统的同步机构采用的信号量上的P

#include <stdlib.h>
#include<iostream.h>
typedef struct node
{
  int num;
  int sec;
  struct node *next;
}*Node;
Node Creatlist(int n)
{
  Node L,p1,p2;
  int i;
  L=p2=(Node*)malloc(sizeof(Node));
  L->num=1;
  printf("\nplease enter the man.1\'s sec:");
  scanf("%d",&L->sec);
  printf("\n");

  for(i=2;i<=n;i++)
   {
     p1=(Node*)malloc(sizeof(Node));
     p1->num=i;
     printf("Enter the man.%d\'s sec:",i);
     scanf("%d",&p1->sec);
     printf("\n");
     p2->next=p1;
     p2=p1;
    }
    p2->next=L;
    return(L);
}
void dellist(Node p,int n,int m)
{
Node pl;
int i=1;
while(n!=0)
{
   while(i<m)
     {
       pl=p;
       p=p->next;
       i++;
     }
   printf("\nThe Out Man is %d \n",p->num);
   m=p->sec;
   pl->next=p->next;
   p=pl->next;
   i=1;
   n--;
}
}
main()
{
  Node p=NULL;
  int s,n,m;
  printf("\nEnter the number of the man :");
  scanf("%d",&n);
  printf("Enter the first sec:");
  scanf("%d",&m);
  p=Creatlist(n);
  for(s=0;s<n;s++)
    {p=p->next;
    }
  dellist(p,n,m);
  getch();
}