百练 2734 十进制到八进制 解题报告

链接：http://poj.grids.cn/practice/2734/

代码：

 1 #include <iostream>
 2 #include <cstdlib>
 3 #include <cstdio>
 4 #include <cstring>
 5 using namespace std;
 6 int main()
 7 {
 8     //freopen("F:\\input.txt","r",stdin);
 9 
10     int a;
11     cin>>a;
12 
13     char chs[7];
14     int i = 0;
15     do
16     {
17         chs[i++] = (a % 8) + '0';
18         a = a / 8;
19     }while(a != 0);
20     chs[i] = '\0';
21 
22     //转置
23     int j = 0;
24     char tmp;
25     while(j < i)
26     {
27         i--;
28         tmp = chs[j];
29         chs[j] = chs[i];
30         chs[i] = tmp;
31         j++;
32     }
33 
34     cout<<chs<<endl;
35 
36     return 0;
37 }