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Apr 10th, 2020
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  1. #include<iostream>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.  
  7.     float r;
  8.     cout<< "Batas maksimal radius = 50"<<endl;
  9.    cout<< " Masukan Nilai Radius"<<endl;
  10.    cin>> r;
  11.     float pr = 2; // pr adalah singkatan dari pixel ratio, nilainya mendekati 2
  12.  
  13. for (int i = -r; i <= r; i++) // loop untuk pergerakan horizontal
  14.    {
  15.    for (int j = -r; j <= r; j++) // loop untuk pergerakan vertikal
  16.        {
  17.            float d = ((i*pr)/r)*((i*pr)/r) + (j/r)*(j/r);
  18.            if (d >0.95 && d<1.08)
  19.                {cout << "*";}
  20.     else{cout << " ";}
  21.        }
  22.    cout << endl;
  23.    }
  24. return 0;
  25. }
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