给出一个不多于3位的正整数n要求：求出它是几位数；分别打印出每一位数字数字之间加一个空格；按逆序打印出各位数字数字之间加一个空格用c语言实现

#include <stdio.h>

int main() {
    int n, count = 0;
    scanf("%d", &n);
    int temp = n;
    while (temp != 0) {
        count++;
        temp /= 10;
    }
    printf("%d\n", count);
    while (n != 0) {
        printf("%d ", n % 10);
        n /= 10;
    }
    printf("\n");
    n = temp;
    while (n != 0) {
        printf("%d ", n % 10);
        n /= 10;
    }
    return 0;
}