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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main(){
  4. 	int k=0,c=0;
  5. 	string s;
  6. 	cin>>s;
  7. 	while(s.length()>1){
  8. 		k=0;
  9. 	for (int i=0;i<(int)s.length();i++)k+=(s[i]-'0');
  10. 	s=to_string(k);
  11. 	cout<<s<<endl;
  12. 	c++;
  13. 	}
  14. 	cout<<c;
  15.  
  16. 	}
  17.  
Success #stdin #stdout 0s 16064KB
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stdout
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6
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https://ideone.com/MydlwE
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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