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] = ' '; 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 }