题解 | 完全数计算

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
         Scanner scanner = new Scanner(System.in);
        while(scanner.hasNext()) {
            int maxInt = scanner.nextInt();
            int count = 0;
            for(int i = 1; i <= maxInt; i ++)
            {
                int divisor = 1;
                int total = 0;
                while(divisor < i)
                {
                    if(i % divisor == 0)
                    {
                        total = total + divisor;
                    }
                    divisor ++;
                }
                if(total == i)
                {
                    count ++;
                }
            }
            System.out.println(count);
        }
    }
}