HDU2015

#include<stdio.h>int main(){    int i,j,k,n,m,a[100],average;    a[1]=2;    for (k=2;k<=100;k++)    a[k]=a[k-1]+2;    while(scanf("%d%d",&n,&m)!=EOF){        for (i=1;i<=n/m;i++){        average=(a[(i-1)*m+1]+a[i*m])/2;        printf((i*m==n)?"%d":"%d ",average);        }        if (n%m)        printf("%d\n",(a[(i-1)*m+1]+a[(i-1)*m+n%m])/2);             else printf("\n");    }    return 0;}