程序代码：

#include<stdio.h>
void int_char(long n,char s[]);
long find_m(int n);
void main()
{
    int n,m,i,j;
    FILE *fp;
    fp=fopen("myf2.out","w");
    printf("input a numble\n");
    scanf("%d",&n);
    m=find_m(n);
    printf("n=%d  m=%ld\n",n,m);
    fprintf(fp,"n=%d  m=%ld\n",n,m);
    fclose(fp);
}


void int_char(long n,char s[])
{
    int i;
    for(i=0;n;i++)
    {
        s[i]=n%10+'0';
        n/=10;
    }
}    

long find_m(int n)
{
    int i=0,j;
    long m;
    char s[20]={0};
    while(1)
    {
        i++,m=n*i;
        int_char(m,s);
        for(j=0;s[j]=='0'||s[j]=='1';)
        {
            j++;
            if(s[j]=='\0')
                return m;
        }
    }
}