RFC

摘要： POJ1503解法一：BigIntegerimport java.math.BigInteger;import java.util.Scanner;/* * 3408K 704MS */public class _1503 { public static void main(String[] args){ Scanner sc = new Scanner(System.in); BigInteger bi = new BigInteger("0"); String str; while(!(str = sc.nextLine(... 阅读全文

摘要： POJ2262import java.util.Scanner;public class _2262 { public static boolean isPrime(int num){ for(int i = 3; i * i <= num; i += 2){ if (i * (num/i) == num)return false; } return true; } public static void main(String[] args){ Scanner sc = new Scanne... 阅读全文