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- #include<iostream>
- using namespace std;
- int main()
- {
- float r;
- cout<< "Batas maksimal radius = 50"<<endl;
- cout<< " Masukan Nilai Radius"<<endl;
- cin>> r;
- float pr = 2; // pr adalah singkatan dari pixel ratio, nilainya mendekati 2
- for (int i = -r; i <= r; i++) // loop untuk pergerakan horizontal
- {
- for (int j = -r; j <= r; j++) // loop untuk pergerakan vertikal
- {
- float d = ((i*pr)/r)*((i*pr)/r) + (j/r)*(j/r);
- if (d >0.95 && d<1.08)
- {cout << "*";}
- else{cout << " ";}
- }
- cout << endl;
- }
- return 0;
- }
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