This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <iostream>
#include <set>
using namespace std;
set <int> sol;
void solve(int n, int x, int l)
{
    if(n == 1)
    {
        sol.insert(x);
        return;
    }
    for(int a = 1; a * a <= n; a++)
    {
        if(n % a == 0)
        {
            if(a >= l)
                solve(n / a, x + a - 1, a);
            if(n / a >= l)
                solve(a, x + n / a - 1, n / a);
        }
    }
}
int main()
{
    int n;
    cin >> n;
    solve(n, 0, 2);
    cout << sol.size() << '\n';
    for(int x : sol)
        cout << x << " ";
    cout << '\n';
}
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... |