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  1. #include<iostream>
  2.  #include <math.h>
  3. using namespace std; 
  4.  
  5.  class cal
  6.  {
  7.      int x;
  8.     public:
  9.     cal()
  10.     {
  11.        cout<<"enter a number: "; 
  12.       cin>>x;
  13.       if(x==0||x==1)
  14.       {
  15.           cout<<x;
  16.       }
  17.       else
  18.       {
  19.           double result;
  20.          result = sqrt(double (x));
  21.          cout<<result;
  22.       }
  23.      }
  24.  
  25.  };   
  26.  
  27. int main()  
  28. {   
  29.     cal ob;
  30.     return 0;    
  31. }
  32.  
Success #stdin #stdout 0s 4388KB
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Standard input is empty
stdout
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enter a number: 181.014
https://ideone.com/LcHWjM
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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