Submission #536920

#	Time	Username	Problem	Language	Result	Execution time	Memory
536920		hmm789	Toys (CEOI18_toy)	C++14	100 / 100	529 ms	4292 KiB

toy

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

set<int> s;

void factor(int x, int mn, int curans) {
	s.insert(curans);
	for(int i = mn; i*i <= x; i++) {
		if(x % i == 0) factor(x/i, i, curans-(x-1)+(i-1)+(x/i-1));
	}
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n;
	cin >> n;
	factor(n, 2, n-1);
	cout << s.size() << '\n';
	for(int i : s) cout << i << " ";
}

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