入坑codewars第三天-Build a pile of Cubes、Convert boolean values to strings 'Yes' or 'No'、Build Tower

第一題： Build a pile of Cubes： Your task is to construct a building which will be a pile of n cubes. The cube at the bottom will have a volume of n^3, the cube above will have volume of (n-1)^3 and so on

>>阅读原文<<