Find a set A of nonnegative integers so that A+A includes all the integers
0, 1, 2, 3, ..., 100.The idea is to find as small a set as you can.
A+A consists of all sums a+b with a and b in A, possibly
a = b.Source: John Connett, University of Minnesota© Copyright 2000 Stan Wagon. Reproduced with permission.