关键在于判断一下每次求平均的结束点
#include <stdio.h>
void main()
{
//先构建数列
int a[100];
for(int i=0;i < 100;i++)
a[i]=(i+1)*2;
int n,m;
while(scanf("%d %d",&n,&m) != EOF)
{
int cnt = 0;
int sum = 0;
bool bFirst = true;
for(int i=0;i < n;i++)
{
sum+=a[i];
cnt++;
if(cnt == m || i+1 == n)
{
if(bFirst)
{
printf("%d",sum/cnt);
bFirst = false;
}
else
printf(" %d",sum/cnt);
cnt = 0;
sum = 0;
}
}
printf("\n");
}
}
