题解 1159: [偶数求和]

参考代码:

#include <stdio.h>
#include <stdlib.h>
#include<string.h>
int main()
{
    int n;
    int m;
    while(scanf("%d%d",&n,&m)!=EOF)
    {
        int sum=0;
        int x=0;
        int i;
        for(i=1;i<=n;i++)
        {
            x+=2;
            sum+=x;
            if(i%m==0&&n>i)
            {
                sum/=m;
                printf("%d ",sum);
                sum=0;
            }
            if(i%m==0&&n==i)
                {
                sum/=m;
                printf("%d\n",sum);
                sum=0;
                }
        }
        if(i==n+1&&sum!=0)
        {
            sum=sum/((i-1)%m);
            printf("%d\n",sum);
        }

    }

    return 0;
}