小编Chr*_*ris的帖子

以下是我认为任何人都需要能够评估我的问题的所有代码

1 import.java.util.Scanner
2 public class ccattano_Sieve{
3         private boolean []  primes = new boolean [50001];
4         private int upper;
5         private int lower;
6 
7         public ccattano_Sieve(){
8             upper = 50000;
9             lower = 1;
10            for (int i = 2; i < primes.length; i++){
11                primes[i] = true;
12            }
13            primes[0] = false;
14            primes[1] = false;
15        }
16 
17        public void processSieve(){
18            for (int i = 2; i < Math.round(Math.sqrt(50000)); i++){
19                if (primes[i] …