kinghyts wrote:
Mike,
Here is how I solved the problem and used my intuition to guess the answer :
1. The range of x is 13 as it is for y
2. Therefore, a hypothetical square that inscribes the circle can have 169 (13 * 13) different co-ordinates including the ones that are on the square.
3. Since area of the circle constitutes most of the area inside the square, we can assume that number of lattice points in the circle should be close to this number 169.
Therefore I selected 109 as the plausible answer
...
