HDOJ2015 ( 偶数求和 )

 1 #include <stdio.h>
 2 int main()
 3 {
 4     int n,m;
 5     int i,b,sum,t,flag;
 6     while (scanf("%d%d",&n,&m)!=EOF)
 7     {
 8         i=1;b=2;sum=0;t=0;flag=1;
 9         while (i<=n)
10         {
11             sum+=b;
12             if(i%m==0)
13             {
14                 if(flag==1)
15                 {
16                     printf("%d",sum/m);
17                     flag=0;
18                 }
19                 else
20                 {
21                     printf(" %d",sum/m);
22                 }
23                 sum=0;
24                 t=0;
25             }
26             else
27             {
28                 t++;
29             }
30             i++;
31             b+=2;
32         }
33         if(t!=0)    printf(" %d\n",sum/t);
34         else    printf("\n");
35     }
36     return 0;
37 }