In the question it is written “Note: Circle i and circle j are distinct when i≠j. There may be any number of circles that coincide (have identical centers and radii).” What does this line mean do we treat coinciding circles as same or different?
Treat them different.
@yadz please don’t ask questions about a running contest in discuss… Moderator may block you for one week.
Ask it in comment section below the question page.
Please close this question now… your query is resolved.