Submission #604677

#	Time	Username	Problem	Language	Result	Execution time	Memory
604677		pakhomovee	Toys (CEOI18_toy)	C++17	100 / 100	1716 ms	66024 KiB

toy

#include <iostream>
#include <vector>
#include <random>
#include <algorithm>
#include <cassert>
#include <cstring>

using namespace std;
#define int long long

vector<int> ans;

void rec(int x, int mx, int c) {
    if (x == 1) {
        ans.push_back(c);
        return;
    }
    int j = 1;
    while (j * j <= x) {
        if (x % j == 0) {
            if (mx >= j && j != 1) {
                rec(x / j, j, c + j - 1);
            }
            if (mx >= x / j) {
                rec(j, j, c + x / j - 1);
            }
        }
        ++j;
    }
}

int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin >> n;
    rec(n, n + 1, 0);
    sort(ans.begin(), ans.end());
    ans.resize(unique(ans.begin(), ans.end()) - ans.begin());
    cout << ans.size() << '\n';
    for (int i : ans) cout << i << ' ';
}

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