Submission #966139

#	Time	Username	Problem	Language	Result	Execution time	Memory
966139		Tob	Toys (CEOI18_toy)	C++14	59 / 100	5015 ms	1240 KiB

toy

#include <bits/stdc++.h>
#pragma GCC optimize("O3","unroll-loops")
#define ll long long
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define pb push_back
#define FIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)

using namespace std;

typedef pair <ll, ll> pii;

set <int> res;

void rek(int n, int sum) {
	if (n == 1) {
		res.insert(sum);
		return;
	}
	for (int i = 2; i*i <= n; i++) {
		if (n % i) continue;
		rek(n/i, sum+i-1);
		if (i*i != n) rek(i, sum+n/i-1);
	}
	rek(1, sum+n-1);
}

int main () {
	FIO;
	int n; cin >> n;
	
	rek(n, 0);
	
	cout << res.size() << "\n";
	for (auto it : res) cout << it << " ";

	return 0;
}

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