题解 | #回文对称数#

#include <stdio.h>

int main() {
    int n;
    scanf("%d", &n);
    for (int i = 1; i <= n; i++) {
        int m = i, arr[50], len = 0, sum = 0, t = 1;
        for (int j = 0; m > 0; j++) {
            arr[j] = m % 10;
            len++;
            m /= 10;
        }
        for (int k = len - 1; k >= 0; k--) {
            sum += arr[k] * t;
            t *= 10;
        }
        if (sum == i)
            printf("%d\n", i);
    }
    return 0;
}