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Re:原来递归不行。。。。In Reply To:原来递归不行。。。。 Posted by:vince4053040 at 2010-01-02 10:49:39 > #include<iostream>
> using namespace std;
> int roots(int m)
> {
> int i,s=0;
> if(m == 0) return 0;
> else if(m < 10) return m;
> else {
> for(i=0;m>=1;i++){
> s=s+m%10;
> m=m/10;
> }
> return roots(s);
> }
> }
>
> int main()
> {
> int a;
> while(cin>>a)
> {
> if(a==0)
> break;
> else
> cout<<roots(a)<<endl;
> }
> return 0;
> }
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