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  1.  
  2. // Online IDE - Code Editor, Compiler, Interpreter
  3.  
  4. #include<iostream>
  5.  
  6. using namespace std;
  7. int pow_recursive(int p, int q){
  8.      if(q==0) return 1;
  9.      if(q%2==0){
  10.          int result=pow_recursive(p,q/2);
  11.          return result*result;
  12.      }
  13.      else{
  14.          int result=pow_recursive(p,(q-1)/2);
  15.          return p*result*result;
  16.      }
  17. }
  18.     int Armstong(int n, int count_zeroes){
  19.         if(n==0) return 0;
  20.         return pow_recursive(n%10,count_zeroes)+Armstong(n/10,count_zeroes);
  21.     }
  22. int main()
  23. {   int n;
  24.     cout<<"enter the value of n"<<endl;
  25.     cin>>n;
  26.     int count_zeroes=0;
  27.     int d=n;
  28.     while(d>0){
  29.       d=d/10;
  30.       count_zeroes++;
  31.     }
  32.     int result=Armstong(n,count_zeroes);
  33.     if(result==n){
  34.         cout<<"YES";
  35.  
  36.     }
  37.     else{
  38.         cout<<"NO";
  39.     }
  40.     return 0;
  41. }
  42.  
Success #stdin #stdout 0s 5284KB
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stdin
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stdout
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enter the value of n
NO
https://ideone.com/DyCrnc
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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