Introduction - If you have any usage issues, please Google them yourself
Has a size ranging from X, Y, and Z, and three non-scale oil drums, respectively filled with oil X, Y, and Z (e.g., X = 80, Y = 50 and Z = 30), and the convention X Are> Y > Z. Initially, only the X drums filled with oil, Y and Z drums empty. Require the program to find a minimal sub-oil Buju T liters of oil was separated in an oil drum (e.g., T = 40).