题解 | #回文对称数#

```c
#include <stdio.h>
#include <math.h>
int main() {
    long n, tmp, tmp1, sum = 0, j = 0;
    while (scanf("%ld", &n) != EOF) {
        for (long i = 1; i <= n; i++) {
            tmp = i;
            tmp1 = i;
            while (tmp1) {
                tmp = tmp1 % 10;
                tmp1 /= 10;
                sum = sum * 10 + tmp;
                j++;
            }
            if (sum == i) {
                printf("%d\n", sum);
            }
            j = 0;
            sum = 0;
        }

    }
    return 0;
}