Giúp Mình bằng ngôn ngữ C++ nhanh nha.

`Code:`

#include<bits/stdc++.h>
using namespace std;

#define ll long long int

ll gcd(ll a, ll b) {
    if (b == 0) {
        return a;
    }
    return gcd(b, a % b);
}

void printAllCommonDivisors(ll n, ll m) {
    ll greatestCommonDivisor = gcd(n, m);
    ll cnt = 0;
    for (ll i = 1; i * i <= greatestCommonDivisor; i++) {
        if (greatestCommonDivisor % i == 0) {
            cnt++;
            if (i * i != greatestCommonDivisor) {
             cnt++;
            }
        }
    }
    cout << cnt << " ";
}

int main() {
    ll n, m;
    cin >> n >> m;
    printAllCommonDivisors(n, m);
    return 0;
}
$\text{#KL0112}$

#include <iostream>
#include <algorithm>
using namespace std;
int main() {
    int a,b;
    cin >> a >> b;
    int d=0,u=__gcd(a,b);
    for (int i=1; i<=u; i++) if (a%i==0 && b%i==0) d++;
    cout << d;
}