Problem 1002 lengths ? whose length?

luntai | 2014-12-13 19:39:03Author
whose lengths are equal to or greater than 3? what's the definition of AP's length ?
admin | 2014-12-13 19:45:49# 1
RE:lengths ? whose length?
就是数列中包含的数字数量
luntai | 2014-12-13 20:07:06# 2
RE:lengths ? whose length?
AP 集合可以是长度不等de(>=3)多个么?
admin | 2014-12-13 20:07:43# 3
RE:lengths ? whose length?
可以