最赞回答 / 嘿喂狗_
(3, 5) => 3+3 => 6 , (6, 9)=>6+6 => 12(3, 5) => 3+5 => 8 , (8, 9)=>8+9 => 17(3, 5) => 3+3+5 => 11 , (11, 9)=>11+11+9 => 31
2016-07-14