Intel Code Challenge Elimination Round (Div.1 + Div.2, combined) D. Generating Sets __ dfs+优先队列+贪心
D.GeneratingSetstimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputYouaregivenaset Y of n distinct positiveintegers y1, y2, ..., yn.Set X of n distinct positiv