#include<stdio.h>
#include<algorithm>
main()
{int n,c,a,b,i,f,j,k,s[4];
while(scanf("%d",&n)&&n!=-1)
{c=0;
printf("N=%d\n",n);
while(1)
{f=a=b=i=j=0;
k=1;
while(n)
	s[i++]=n%10,n/=10,j++;
std::sort(s,s+j);
for(i=0;i<j;i++)
	a+=s[i]*k,b+=s[j-i-1]*k,k*=10;
n=a-b;
c++;
if(!n&&c==1||(c==1&&j!=4))
	{puts("No!!"),f=1;break;}
printf("%d-%d=%d\n",a,b,n);
if(n%6174==0)break;
}
if(!f)printf("Ok!! %d times\n",c);
}
}

• Re:高手看看为什么wrong？ (485) kkkk6789 2016-07-12 09:47:18