hdu 2015 偶数求和

 1 #include<cstdio>
 2 #include<cstring>
 3 using namespace std;
 4 int main()
 5 {
 6     int n,m,a,b;
 7     while (~scanf("%d%d",&n,&m))
 8     {
 9         a=2;
10         while (n)
11         {
12 
13             if (m>n) m=n;
14             b=a+2*(m-1);
15             a=(a+b)/2;
16             if (m!=n)
17             printf("%d ",a);
18             else printf("%d\n",a);
19             a=b+2;
20             n-=m;
21         }
22     }
23     return 0;
24 }