为什么我的程序总是不能执行啊？



#include<stdio.h>
#include<stdlib.h>
#define HUNTHOU 10000
typedef struct node{ int data;
                     struct node *next;
                  }NODE;               

NODE *insert_after(NODE *u,int num);   
NODE *addint(NODE *p,NODE *q);      
void printint(NODE *s);
NODE *inputint(void);


NODE *insert_after(NODE *u,int num)
{
   NODE *v;
   v=(NODE *)malloc(sizeof(NODE));   
   v->data=num;                     
   u->next=v;                           
   return v;
}
NODE *addint(NODE *p,NODE *q)      
{
   NODE *pp,*qq,*r,*s,*t;
   int total,number,carry;
   pp=p->next; qq=q->next;
   s=(NODE *)malloc(sizeof(NODE));   
   s->data=-1;
   t=s; carry=0;                    
   while(pp->data!=-1&&qq->data!=-1)   
   {
      total=pp->data+qq->data+carry;   
      number=total%HUNTHOU;           
      carry=total/HUNTHOU;           
      t=insert_after(t,number);     
      pp=pp->next;                     
      qq=qq->next;
   }
   r=(pp->data!=-1)?pp:qq;      
   while(r->data!=-1)            
   {
      total=r->data+carry;        
      number=total%HUNTHOU;      
      carry=total/HUNTHOU;     
      t=insert_after(t,number);   
      r=r->next;               
   }
   if(carry) t=insert_after(t,1);     
   t->next=s;                      return s;                  }
NODE *inputint(void)  {
   NODE *s,*ps,*qs;
   struct number {int num;
                  struct number *np;
               }*p,*q;
   int i,k;
   long sum;
   char c;
   p=NULL;   
while((c=getchar())!='\n')        
if(c>='0'&&c<='9')      
      {
         q=(struct number *)malloc(sizeof(struct number));   
         q->num=c-'0';        
         q->np=p;               
         p=q;
      }
   s=(NODE *)malloc(sizeof(NODE));
   s->data=-1;               
   ps=s;
   while(p!=NULL)      
   {
      sum=0;i=0;k=1;
      while(i<4&&p!=NULL)         
      {
         sum=sum+k*(p->num);   
         i++; p=p->np; k=k*10;
      }
      qs=(NODE *)malloc(sizeof(NODE));         
      qs->data=sum;                 
      ps->next=qs;
      ps=qs;
   }
   ps->next=s;
   return s;
}
void printint(NODE *s)
{
   if(s->next->data!=-1)        
   {
      printint(s->next);           
      if(s->next->next->data==-1)
         printf("%d",s->next->data);
      else{
         int i,k=HUNTHOU;
         for(i=1;i<=4;i++,k/=10)
            putchar('0'+s->next->data%(k)/(k/10));
      }
   }
}

void main()
{
   NODE *s1,*s2,*s;
   printf("Enter S1= ");
   s1=inputint();         
   printf("Enter S2= ");
   s2=inputint();        
   printf(" S1="); printint(s1); putchar('\n');   
   printf(" S2="); printint(s2); putchar('\n');   
   s=addint(s1,s2);                          
   printf("S1+S2="); printint(s); putchar('\n');   
}



这是一个用单循环链表来做长整数加法的问题，前面都没错误，可是到调试的时候有错误说外部函数有问题
求教

[ 本帖最后由 夜隐枯灯 于 2011-11-28 11:10 编辑 ]

求教