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质数筛（洛谷P5736题题解，Java语言描述）

星拱北辰发布时间：2020-05-01 10:51:04 ，浏览量：1

题目要求

题目链接

在这里插入图片描述

分析

思路：先用埃氏筛筛一下100000以内质数，然后就没啥了……

AC代码（Java语言描述）

import java.util.Scanner;

public class Main {

    private static boolean[] prime;

    private static void eratosthenes(int num) {
        prime = new boolean[100001];
        for (int i = 2; i


    
        
            
                
                
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