经典的分油问题，1斤油装在一个1斤瓶里，还有个7两瓶，最后分成两个5两。-classic Oil, a burden the oil packed in a bottle a burden, there will be seven or two, the last divided into two five two.

分酒问题：已知有3个容量分别为3kg,5kg和8kg且没有刻度的酒瓶,3kg和5kg的酒瓶均装满了酒,而8kg的瓶子为空.现要求仅用这3个瓶子将这些酒分为两个4kg,并分别装入5kg和8kg的瓶子中. 提示:回溯,递归算法.最初始的状态为(350),最终的状态为(044),要求求解所有的解法.,Hours of liquor question: known to have three capacity, respectively 3kg, 5kg and 8kg without calibr