Week 8: December 28 - January 10. Functions. Part 2
Point within a circle
Check, if the point is inside the circle.
The first line contains the coordinates of the circle center and its radius. The second line contains the coordinates of point A. All numbers are integers not exceeding 10000 by absolute value.
Print the "YES", if the point A belongs to a circle (with boundaries), and "NO" otherwise.
2 1 2 1 3