设有大小不等的X，Y，Z三个无刻度的油桶，分别能够盛满油X，Y，Z(例如，X=80，Y=50，Z=30)，并约定X>Y>Z。初始时，仅X油桶盛满油，Y和Z油桶为空。要求程序寻找一种最少的分油步聚，在某个油桶中分出T升油(例如T=40)。

-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).