算法学习2-6排列

#include <stdio.h>
int main()
{
    int a,b,c,a1,a2,a3,b1,b2,b3,c1,c2,c3;
    for (a=123;a<329;a++)
    {
        b=2*a;
        c=3*a;
        a1=a/100;
        a2=a%100/10;
        a3=a%10;
        b1=b/100;
        b2=b%100/10;
        b3=b%10;
        c1=c/100;
        c2=c%100/10;
        c3=c%10;
        if(a1!=a2!=a3!=b1!=b2!=b3!=c1!=c2!=c3&&a2!=0&&a3!=0&&b2!=0&&b3!=0&&c2!=0&&c3!=0)
            printf("%d %d %d\n",a,b,c);
    }
    return 0;
}