题解 | #质因数的个数#

#include <iostream>
using namespace std;

int cnt;

void divide(int x)
{
    for (int i = 2; i <= x / i; ++i)
    {
        if (x % i == 0)
        {
            int s = 0;
            while (x % i == 0)
                x /= i, ++s;
            cnt += s;
        }
    }
    if (x > 1)
        cnt += 1;
}

int main()
{
    int n;
    cin >> n;
    divide(n);
    cout << cnt << endl;
    return 0;
}