2021年9月1日
1015 Reversible Primes (20 分)
摘要： A reversible prime in any number system is a prime whose "reverse" in that number system is also a prime. For example in the decimal system 73 is a re 阅读全文
posted @ 2021-09-01 18:18 白玉神驹 阅读(44) 评论(0) 推荐(0)