1015 Reversible Primes(20 分) 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 reversible prime because its reverse 37 is also a prime. Now given a…

1015 Reversible Primes(20 分) 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 reversible prime because its reverse 37 is also a prime. Now given a…

1015 Reversible Primes (20 分)   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 reversible prime because its reverse 37 is also a prime. Now give…

PAT (Advanced Level) Practice 1015 Reversible Primes (20 分) 凌宸1642 题目描述: 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 reversible prime because…

1015 Reversible Primes (20 分)   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 reversible prime because its reverse 37 is also a prime. Now give…

1015 Reversible Primes (20)(20 分)提问 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 reversible prime because its reverse 37 is also a prime. Now…

1011 World Cup Betting (20)(20 分)提问 With the 2010 FIFA World Cup running, football fans the world over were becoming increasingly excited as the best players from the best teams doing battles for the World Cup trophy in South Africa. Similarly, footb…

1001 A+B Format (20)(20 分) Calculate a + b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less than four digits). Input Each input file contains one test case. Each case…

1049 数列的片段和(20)(20 分) 给定一个正数数列,我们可以从中截取任意的连续的几个数,称为片段.例如,给定数列{0.1, 0.2, 0.3, 0.4},我们有(0.1) (0.1, 0.2) (0.1, 0.2, 0.3) (0.1, 0.2, 0.3, 0.4) (0.2) (0.2, 0.3) (0.2, 0.3, 0.4) (0.3) (0.3, 0.4) (0.4) 这10个片段. 给定正整数数列,求出全部片段包含的所有的数之和.如本例中10个片段总和是0.1 0.3 + 0…

1033 旧键盘打字(20)(20 分) 旧键盘上坏了几个键,于是在敲一段文字的时候,对应的字符就不会出现.现在给出应该输入的一段文字.以及坏掉的那些键,打出的结果文字会是怎样? 输入格式: 输入在2行中分别给出坏掉的那些键.以及应该输入的文字.其中对应英文字母的坏键以大写给出:每段文字是不超过10^5^个字符的串.可用的字符包括字母[a-z, A-Z].数字0-9.以及下划线"_"(代表空格).","."."."-".&qu…