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why!高人半忙指点一下!我的代码为什么老ac不了?愤啊!!! #include <iostream> using namespace std; int root (int n) { int a; do { a=0; while(n>0) { a+=n%10; n=n/10; } n=a; }while(n>=10); return n; } int main() { int p; while(1) { cin>>p; if(p) cout<<root(p)<<endl; else break; } } Followed by:
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