Java 完全平方和

題目: 完全平方和

import java.util.Scanner;
import java.lang.Math;

public class Square{
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
  
        while(sc.hasNext()){
            int n = sc.nextInt();
   
            for(int i = 1; i <= n; i++){
                int a = sc.nextInt();
                int b = (int)Math.sqrt(sc.nextInt());
                int calc = 0;
    
                int s = (int)Math.sqrt(a);
                a = (a > 1) ? ((s*s < a) ? s + 1 : s) : 1;
    
                for(; a <= b; a++){
                    calc += (a*a);
                }
                System.out.println("Case " + i + ": " + calc);
            }
   
        }
    }
 
}