1015. Reversible Primes (20)】的更多相关文章

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…
题目 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 any two positive integers N…
the problem is from PAT,which website is http://pat.zju.edu.cn/contests/pat-a-practise/1015 this problem is relatively easy.if there must be something which need to be noticed, i think "1 is not a prime" could be one of them. #include<stdio.h…
problem 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 any two positive integ…
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 any two positive integers N (&…
题目 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 any two positive integers N…
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 any two positive integers N (&…
简单题. #include<iostream> #include<cstring> #include<cmath> #include<algorithm> #include<cstdio> #include<map> #include<queue> using namespace std; int a,b; ],tot; bool f(int x) { ) ; ;i*i<=x;i++) ) ; ; } int mai…
先判断n是否为素数然后把n转化成d进制下再反转,转化为十进制的num判断num是否为素数 注意n为0和1时,不是素数!!!注意反转后的num也有可能为1,不是素数!!! #include <iostream> #include <cstdio> #include <algorithm> #include <cstring> #include <cmath> using namespace std; int n,d; bool isprime(in…