进制转换，杭电0j-2031

 1 #include<stdio.h>
 2 void print(int num)
 3 {
 4     if(num == 10) printf("%c", ‘A‘);
 5     else if(num == 11) printf("%c", ‘B‘);
 6     else if(num == 12) printf("%c", ‘C‘);
 7     else if(num == 13) printf("%c", ‘D‘);
 8     else if(num == 14) printf("%c", ‘E‘);
 9     else if(num == 15) printf("%c", ‘F‘);
10     else printf("%d",num);
11 }
12 main()
13 {
14     int a, b, i, j, flag = 0;
15     int c[100];
16     while(~scanf("%d %d", &a, &b))
17     {
18         int i = 0;
19         if(b<2 || b>16 || b==10) break;
20         if(a<0) a = -a, flag = 1;
21         while(a)
22         {
23             c[i] = a%b;
24             a = a/b;
25             i++;
26         }        
27         if(flag) printf("-"), flag = 0;    
28         for(j=i-1; j>=0; j--)
29         print(c[j]);
30         printf("\n");
31     }
32 }