How many positive even perfect cubes are less than 2008?

问题描述:

How many positive even perfect cubes are less than 2008?

题目应该是问2008内有多少个数的立方.也就是说有多少个正数的3次方比2008小吧.
12*12*12=1728,13*13*13=2197.所以答案应该是12个,就是1-12的立方都比2008小