程序代码：

#include<stdio.h>
int comp(char *a,char *b)
{
    int i=0,j=0,k;
    
    while(b[i]!='\0')
    {   if(b[i]=!a[j])i++;
        if(b[i]==a[j])
        {i++;j++;}
        
    }
    if(a[j]=='\0')return 1;
    return 0;
    
    }
void fcount(int data[],int ct,int x[])
{
int i,j,t;
char s[10][10];
for(i=0;i<ct;i++)
{   j=0;t=data[i];printf("%10d\n",i);
    while(t)
    {
        s[i][j++]=t%10+'0';
        t/=10;
    }
    s[i][j]='\0';/**/puts(s[i]);
}  
for(i=0;i<ct;i++)
    for(j=0;j<ct;j++)
    {puts(s[i]);
    
    if(comp(s+i,s+j))x[i]++;}

   




}
main()
{
    int a[]={21,3,15,35,315,121,31,1,2115,2},res[10]={0},i,ct=10;
    FILE *fp;
    fp=fopen("T:\\myf2.out","w");
    fcount(a,ct,res);
    for(i=0;i<ct;i++)
    {printf("%5d",res[i]);fprintf(fp,"%5d",res[i]);}
    
    fclose(fp);

}