POJ1003 水题不解释

import java.util.Scanner;

public class Main {

public static void main(String[] args){

Scanner input=new Scanner(System.in);

while(input.hasNext()){

double target=input.nextFloat();

if(target==0)

return;

if(target<=0.5){

System.out.println("1 card(s)");

continue;

}

int cards=1;

double sum=0.5;

int base=2;

while(sum<target){

base++;

sum+=1.0/base;

cards++;

};

System.out.println(cards+" card(s)");

}

}

}