hdoj_2015

#include<stdio.h> 
int main(){
    int n,m;
    int a[101];
    while(scanf("%d%d",&n,&m)!=EOF){
        //if(n<m||n>100||n<=0||m<=0)    return 0;
     if(n<=100){
        a[0]=0; 
        int count=0;
        int sum=0;
        int i; //注意a[0],count,sum的初值都要设为0
        for(i=1;i<=n;i++){  //这里i<=n 
            a[i]=a[i-1]+2;
            count++;
            sum=sum+a[i];
                if(count==m){
                    printf("%d",sum/m);
                    count=0;
                    sum=0;
                    if(i<n)
                    printf(" "); //格式 
                }

        }
        if(count>0&&count<m)
                printf("%d\n",sum/count);
        else 
                printf("\n");
     }
    }
    return 0;
}