2021年8月22日
Digit Counts
摘要： Source Count the number of k's between 0 and n. k can be 0 - 9. Example if n=12, k=1 in [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12], we have FIVE 1's ( 阅读全文
posted @ 2021-08-22 14:16 凌雨尘 阅读(35) 评论(0) 推荐(0) 编辑