题解 | #牛牛逆序输出#

#include <iostream>

using namespace std;

int main()
{
    int n;
    cin >> n;
    int arr[100] = { 0 };
    int k = 0;
    while (n != 0)
    {
        arr[k] = n % 10;
        k++;
        n = n / 10;
    }
    for (int i = 0; i < k; i++)
    {
        cout << arr[i];
    }
    cout << endl;
}