Difference between revisions of "KGS math club/solution 3 1"
(New page: the distance between the origin and a center of a little sphere is sqrt(n). => The radius of the big sphere is sqrt(n)-1 So we must have sqrt(n)-1 <= 2, or n<=9) |
(No difference)
|
Revision as of 16:36, 30 June 2008
the distance between the origin and a center of a little sphere is sqrt(n). => The radius of the big sphere is sqrt(n)-1
So we must have sqrt(n)-1 <= 2, or n<=9
