进制回文数

 1 #include <stdio.h>
 2 bool huiwen(char a[], int n){
 3 
 4     int i, j;
 5     i = 0; j = n - 1;
 6 
 7     while (i < j){
 8         if (a[i] != a[j])
 9             return false;
10         i++;
11         j--;
12     }
13 
14     return true;
15 }
16 
17 int main(){
18     char buffer[1001];
19     int a;
20     int temp;
21     int counter = 0;
22     int i;
23     while (scanf("%d", &a) != EOF){
24         int b = a;
25         for ( i = 2; i <= 16; i++){
26             b = a;
27             counter = 0;
28             while (b){
29                 temp = b % i;
30                 b /= i;
31                 if (temp >= 10){
32                     buffer[counter] = temp - 10 + 'A';
33                 }
34                 else{
35                     buffer[counter] = temp + '0';
36                 }
37                 counter++;
38             }
39 
40             //printf("i = %d, counter = %d
", i, counter);
41             if (huiwen(buffer, counter)){
42                 break;
43             }
44 
45         }//end for
46 
47         if (i >= 17){
48             printf("No
");
49         }
50         else{
51             printf("Yes
");
52         }
53     }
54 
55 }