#include<stdio.h>
#define MAXSIZE 100
typedef struct{
 int key;
 }record;
     typedef struct{
   record r[MAXSIZE+1];
   int length;
 }tab;
    void binary(tab *tb){
     
     int i,j,left,right,mid;
     for(i=2;i<=tb->length;i++)
     {
       tb->r[0].key=tb->r[i].key;
       left=1;
       right=i-1;
       while(left<=right)
       {
         mid=(left+right)/2;
         if(tb->r[i].key<tb->r[mid].key)
             right=mid-1;
         else
             left=mid+1;
       }
       for(j=i-1;j>=left;j--)
           tb->r[j+1].key=tb->r[j].key;
          tb->r[left].key=tb->r[0].key;
     }
          }
     void init_sequence(tab *p)
     {
      p->length=0;
     }
     void inser_sequence(tab *p,int x)
     {
      if(p->length==MAXSIZE)
      {printf("不能插入！");exit(1);}
      p->r[p->length].key=x;
      p->length=p->length+1;
     }
     void printsequence(tab p)
     {
       int i;
       if(!p.length) printf("顺序表是空的");
       else
           for(i=0;i<=p.length;i++)
               printf("%d",p.r[p.length].key);
     }
 main()
 {

  tab *p;
  
  inser_sequence(p,10);
  inser_sequence(p,5);
  inser_sequence(p,4);
  inser_sequence(p,2);
  inser_sequence(p,15);
  inser_sequence(p,20);
  inser_sequence(p,30);
  inser_sequence(p,36);
   binary(p);
   printsequence(*p);

 }
      
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