[洛谷Java解题分享]入门P1035 [NOIP2002 普及组] 级数求和

import java.util.Scanner;

public class Main {
   public static void main(String[] args) {
        int k= new Scanner(System.in).nextInt();
        double sum=0.0;
        double i=1.0;
        for(i=1;sum<=k;i++){
            sum+=1.0/i;
        }
        System.out.println((int)(i-1));
    }
}