code c++ nha cần gấp

$#doanthevu$

Code C++ :

#include <bits/stdc++.h>
#define ll long long
using namespace std;
ll uu(ll n) {
    ll count = 0;
    while (n != 0) {
        count++;
        n /= 10;
    }
    return count;
}
ll sfd(ll n) {
    ll sum = 0;
    while (n != 0) {
        sum += n % 10;
        n /= 10;
    }
    return sum;
}

int main() {
    ll n;
    cin >> n;
    ll pp = uu(n);
    ll sd = sfd(n);
    cout << pp << endl;
    cout << sd << endl;
    return 0;
}

#include <iostream>
using namespace std;
long long s, tong, dem;
int main() 
{
    cin >> s;
    while(s != 0)
    {
        tong += s % 10;
        s = s/10;
        dem++;
    }
    cout << dem << " " << tong;
    return 0;
}