Contest1399/F_SumEven.java

package aoj.contest1399;

import java.util.Scanner;
public class F_SumEven {
   public static void main(String[] args){
       Scanner cin=new Scanner(System.in);
       int m,n,a,sum,k;
       while(cin.hasNext()){
         n=cin.nextInt();
         m=cin.nextInt();
         a=2;sum=0;k=0;
         while(n-->0){
             sum=sum+a;
             a+=2;
             k++;
             if(k==m){
                 sum=sum/k;
                 System.out.print(sum+" ");
                 sum=0;k=0;
            }
         }
         if(k!=0){
             sum=sum/k;
             System.out.println(sum);
         }
       }
       cin.close();
   }
}