约瑟夫环C语言代码

/*******************************************************
	约瑟夫问题是个有名的问题：N个人围成一圈，从第一个开始报数，第M
个将被杀掉，最后剩下一个，其余人都将被杀掉。例如N=6，M=5，被杀掉的
顺序是：5，4，6，2，3，1。
	此为小程序多文件的写法，有 joseph.c  joseph.h 
main.c  makefile  四个文件。
*******************************************************/
//
#include 
#include 
#include "joseph.h"

joseph *joseph_insert(int num)
{
	joseph *l = NULL;
	joseph *p = NULL;
	joseph *new = NULL;
	int i = 1;

	l = malloc(sizeof(joseph));
	l->id = i;
	
	p = l;

	sprintf(l->id, "%d", i);

	for(i = 1; i <=10 ; i++)
	{
		new = malloc(sizeof(LLIST));
		new->id = i;
		sprintf(new->id, "%d", i);
		new->next = l;
		p->next = new;
		p = new;
	}
	return l;

}


void joseph_display(joseph *l)
{
	joseph *p;

	for(p = l; p != l; p = p->next)
		printf("%d\n", p->id);
}

int joseph_play(joseph *p, int i , int j)
{
	joseph *p = l;

	LLIST *p = NULL;

//	p = _find(*l, find_data);

	for(i = 1; i < 4; i++)
	{
		while(i == 3)
		{

		}
	}

	for(p = l; p != l; p = p->next)
	{
		if(p->id == );
			return p;
	}

	if(p == NULL)
		return -1;
	if(p == *l)
	{
		*l = (*l)->next;
		free(p);
	}
	else
	{
		while(back->next != p)
			back = back->next;
		back->next = p->next;
		free(p);
	}

	printf("Bingo! l->id = %d\n",i);

	return 0;
}
//----------------------------------------------------------------------------------------------------------
//

#ifndef __JOSEPH_H
#define __JOSEPH_H

typedef struct llist
{
	int id;
	struct llist *next;
}joseph;

joseph *joseph_insert(int);

void joseph_display(joseph *);

int joseph_play(joseph *, int , int);

#endif

//----------------------------------------------------------------------------------------------------------
//

#include 
#include "joseph.h"

int main(void)
{
	joseph *l = NULL;
	int peo_num = 0;
	int kill_num = 0;
	int alive = 0;

	printf("Please Insert People Number : ");
	scanf("%d", &peo_num);
	l = joseph_insert(peo_num);//插入
	printf("=======================================\n");
	joseph_display(l);//遍历
	printf("=======================================\n");
	printf("Please Insert Kill Number : ");
	scanf("%d", &kill_num);
	alive = joseph_play(l, peo_num, kill_num);//玩游戏
	printf("=======================================\n");
	printf("Alive : %d\n", alive);

	return 0;
}
//----------------------------------------------------------------------------------------------------------
//
main : main.o joseph.o
    gcc -o $@ $^
clean :
    rm -rf *.o main