2018年4月10日
1015. Reversible Primes (20)
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 @ 2018-04-10 19:22 王清河 阅读(118) 评论(0) 推荐(0)