Algorithm
Step 1 − Get the coordinates of the center of the circle and radius, and store them in x, y, and R respectively. Set P=0 and Q=R.
Step 2 − Set decision parameter D = 3 – 2R.
Step 3 − Repeat through step-8 while X < Y.
Step 4 − Call Draw Circle (X, Y, P, Q).
Step 5 − Increment the value of P.
Step 6 − If D < 0 then D = D + 4x + 6.
Step 7 − Else Set Y = Y + 1, D = D + 4(X-Y) + 10.
Step 8 − Call Draw Circle (X, Y, P, Q).
Ans: (D)