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| import java.util.*; | |
| public class Main { | |
| public static void main(String[] args) { | |
| Scanner scn = new Scanner(System.in); | |
| ArrayList<Integer> list=new ArrayList<Integer>(); | |
| int i=1,num=1; | |
| while(num<=100000){ | |
| list.add(num); | |
| i++; | |
| num=i*i; | |
| } | |
| while(true){ | |
| int a=scn.nextInt(),b=scn.nextInt(),count=0; | |
| if(a==0&&b==0) | |
| break; | |
| if(a==b) | |
| b++; | |
| for(int k=0;k<list.size();k++){ | |
| if(list.get(k)>=a&&list.get(k)<=b) | |
| count++; | |
| } | |
| System.out.println(count); | |
| } | |
| } | |
| /*題目：Q11461:Square Numbers | |
| 作者：1010 | |
| 時間：西元 2017 年 3 月 */ | |
| } |
這題用ArrayList先建表，計算輸入a、b序列中有幾個是符合平方的數
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