统计单链表元素出现次数

Question

函数接口定义
int GetCount ( LinkList L,ElemType e );

#include <stdio.h>
#include <stdlib.h>

typedef int ElemType;
typedef struct LNode
{
ElemType data;
struct LNode *next;
}LNode,*LinkList;

LinkList Create();/* 细节在此不表 */

int GetCount ( LinkList L, ElemType e);

int main()
{
ElemType e;
LinkList L = Create();
scanf("%d",&e);
printf("%d\n", GetCount(L,e));
return 0;
}
LinkList Create()
{
LinkList L,r,p;
ElemType e;
L = (LinkList)malloc(sizeof(LNode));
L->next = NULL;
r = L;
scanf("%d",&e);
while(e!=-1)
{
p = (LinkList)malloc(sizeof(LNode));
p->data = e;
p->next = r->next;
r->next = p;
r = p;
scanf("%d",&e);
}
return L;
}

/* 你的代码将被嵌在这里 */

Answer 1

是要写搜索函数么？

int GetCount(LinkList L,int e)
{
    int count = 0;
    LinkList p = L->next;
    while(p != NULL)
    {
        if(p->data == e)
            count++;
        p = p->next;
    }
    return count;
}