소수 구하기(에라토스테네스의 체 알고리즘)
http://marobiana.tistory.com/91 import java.util.Arrays;import java.util.Scanner; public class test{public static void main(String[] args) {Scanner sc = new Scanner(System.in);int m = sc.nextInt();int n = sc.nextInt();boolean[] arr = new boolean[n+n];int total = 0;Arrays.fill(arr, false);for(int i=2;i
