在查找过程中输出过程中输出答案与预期答案不符

Question

#include<stdio.h>
#include<malloc.h>
#include<stdlib.h>
typedef struct st {
    char data;
    struct st*next;
}NODE,*PNODE;
PNODE creat_list(int length)
{
    PNODE pHead=(PNODE)malloc(sizeof(NODE)*1);
    pHead->next=NULL;
    if(NULL==pHead)
    {
        printf("动态内存分配失败！程序终止\n");
        exit(-1);
    }
    char val; 
    PNODE pTail=pHead;
    pTail->next=NULL;
   for(int j=0;j<length+1;j++)
   {
       PNODE pNew=(PNODE)malloc(sizeof(NODE)*1);
       if(NULL==pNew)
    {
        printf("动态内存分配失败！程序终止\n");
        exit(-1);
    }
    scanf("%c",&val);
    pNew->data=val;
       pTail->next=pNew;
       pNew->next=NULL;
       pTail=pNew; 
   }
   return pHead;
}
//按位查找
void serach_list(PNODE pHead,int len,int i)
 {
     char val;
     int count=1;
     if(pHead==NULL)
        {
            printf("not found\n");
        }
    else
        {
            PNODE p=pHead->next;
            scanf("%c",&val);
            while(p!=NULL)
            {
                p=p->next;
                count++;
            }
            printf("%d\n",count);
        }
 }
int main()
{
    PNODE pHead=NULL;//初始化头指针 
    int len,i;
    //char val;//存储找到那个字符的值
    while(~scanf("%d %d",&len,&i)){
        getchar(); 
        pHead=creat_list(len);
        serach_list(pHead,len,i);
    }
 }