Submission #1345958

#	Time	Username	Problem	Language	Result	Execution time	Memory
1345958		kawhiet	Toys (CEOI18_toy)	C++20	79 / 100	5094 ms	1816 KiB

toy

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

#ifdef LOCAL
#include "debug.h"
#else
#define dbg(...) 47
#endif

set<int> s;

void go(int n, int cnt, int sum, int prv) {
    if (n == 1) {
        s.insert(sum);
        return;
    }
    if (cnt == 0) {
        return;
    }
    for (int x = prv + 1; ; x++) {
        int k = 1;
        for (int i = 0; i < cnt; i++) {
            k *= x;
            if (k > n) break;
        }
        if (k > n) break;
        if (n % x > 0) continue;
        int v = n, s = 0;
        while (v % x == 0 && cnt > s) {
            v /= x;
            s++;
            go(v, cnt - s, sum + (x - 1) * s, x);
        }
    }
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    go(n, 30, 0, 0);
    cout << s.size() << '\n';
    for (auto x : s) {
        cout << x << ' ';
    }
    cout << '\n';
    return 0;
}

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