删除重复的数（顺序有序表）

#include<stdio.h>
const int LIST_INIT_SIZE=100;
const int LISTINCRMENT=10;
typedef int A;
typedef struct
{
	A *elem;
	int Length;
	int Listsize;
	int incrementsize;
}SqList;
void InitList(SqList &L,int maxsize=LIST_INIT_SIZE,int incresize=LISTINCRMENT)
{
	L.elem=new A[maxsize];
	L.Length=0;
	L.Listsize=maxsize;
	L.incrementsize=incresize;
}
void purge(SqList &L)
{
	int i,j;
	i=-1;
	j=0;
	while(j<L.Length)
	{
		if(j==0||L.elem[i]!=L.elem[j])
			L.elem[++i]=L.elem[j];
		j++;
	}
	L.Length=i+1;
}
int main()
{
	int n,i;
	SqList L;
	InitList(L);
	scanf("%d",&n);
	for(i=0;i<n;i++)
	{
		scanf("%d",&L.elem[i]);
		L.Length++;
	}
	for(i=0;i<n;i++)
	{
		printf("%d ",L.elem[i]);
	}
	printf("\n");
	purge(L);
	for(i=0;i<L.Length;i++)
		printf("%d ",L.elem[i]);
	return 0;
}