Submission #124394

#	Time	Username	Problem	Language	Result	Execution time	Memory
124394		youssefbou62	Toys (CEOI18_toy)	C++14	79 / 100	5010 ms	39552 KiB

toy

#include <bits/stdc++.h>

using namespace std;

#define mp make_pair
#define fi first
#define se second
#define all(v) v.begin(), v.end()
#define allarr(a) a, a + n
#define ll long long
#define ull unsigned long long
#define pb push_back
#define fastio                        \
    ios_base::sync_with_stdio(false); \
    cin.tie(NULL);                    \
    cout.tie(NULL)
typedef pair<int, int> pi;
typedef pair<ll, ll> pll;
typedef pair<int, pi> trp;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
ll _abs(ll x) { return (x > 0 ? x : -x); }

vector<int> ans;
set <pi> dp ; 
int N;
void solve(int n, int x)
{
    // cout << n << " " << x << endl;
    if (x >= N)return ; 
    if (dp.find({n,x})!=dp.end())
            return;
    dp.insert({n,x}); 
    if (n == 1)
    {
        ans.pb(x);
        return;
    }

    for (int i = 1; i * i <= n; i++)
    {
        if (n % i == 0)
        {
            if (i != 1)
                solve(n / i, x + i - 1);
            solve(i, x + n / i - 1);
        }
    }
}

int main()
{
    cin >> N;
    solve(N, 0);
    cout << ans.size() << endl;
    sort(all(ans)); 
    for (int i : ans)
        cout << i << "  ";
}

• Subtask 1: 19 / 19
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 0 / 21