Hdu 2015 偶數求和

題目鏈接：http://acm.hdu.edu.cn/showproblem.php?pid=2040。

水題。

CODE：

?1?#include?<stdio.h>
?2?#include?<stdlib.h>
?3?#include?<string.h>
?4?#include?<math.h>
?5?using?namespace?std;
?6?
?7?const?int?maxn?=?102;
?8?
?9?int?save[maxn]?=?{0};
10?
11?void?init()
12?{
13?????int?cnt?=?1;
14?????for(int?i?=?1;?i?<=?100?;i++)
15?????{
16?????????save[cnt++]?=?i*2;
17?????}
18?????return?;
19?}
20?
21?int?main()
22?{
23?????int?n?,?m?,?index;
24?????init();
25?????while(~scanf("%d%d",?&n?,&m))
26?????{
27?????????int?sum?=?0;
28?????????for(int?i?=?1;?i?<=?n?;i++)
29?????????{
30?????????????if(i?%?m?==?0)
31?????????????{
32?????????????????sum?+=?save[i];
33?????????????????if(i?!=?n)
34?????????????????{
35?????????????????????printf("%d?",?sum?/?m);
36?????????????????}
37?????????????????else
38?????????????????{
39?????????????????????printf("%d\n",?sum?/?m);
40?????????????????}
41?????????????????sum?=?0;
42?????????????????index?=?i;
43?????????????}
44?????????????else
45?????????????{
46?????????????????sum?+=?save[i];
47?????????????}
48?????????}
49?????????if(sum?!=?0)
50?????????{
51?????????????printf("%d\n"?,?sum?/?(n?-?index));
52?????????}
53?????}
54?????return?0;

55?}?