给定一组元素,如何在此列表的所有子集中找到MAX和MIN之间的差异.
例如:
set = 1 2 3
Subset = {1}, max(s)-min(s) = 0.
Subset = {2}, max(s)-min(s) = 0.
Subset = {3}, max(s)-min(s) = 0.
Subset = {1,2}, max(s)-min(s) = 1.
Subset = {2,3}, max(s)-min(s) = 1.
Subset = {1,3}, max(s)-min(s) = 2.
Subset = {1,2,3}, max(s)-min(s) = 2.
So the output will be 1+1+2+2 = 6