Submission #536959

#	Time	Username	Problem	Language	Result	Execution time	Memory
536959		Hydroxic_Acid	Toys (CEOI18_toy)	C++17	39 / 100	5060 ms	340 KiB

toy

#include <iostream>
#include <algorithm>
#include <vector>
#include <cmath>
#include <set>
using namespace std;
#define int long long

int n;
vector<int> v;
set<int> ans;

int temp[100000];

void dp(int idx, int curr, int end){
	if(idx == (int)v.size()){
		ans.insert(curr - end - 1);
		return;
	}
	temp[end + 1] = v[idx];
	dp(idx + 1, curr + v[idx], end + 1);
	temp[end + 1] = 0;
	for(int i = end; i >= 0; i--){
		temp[i] *= v[idx];
		dp(idx + 1, curr + temp[i] - temp[i] / v[idx], end);
		temp[i] /= v[idx];
	}
}

signed main(){
	cin >> n;
	int f = 2;
	while(f <= (int)sqrt(n) + 1 && n > 1){
		if(n % f == 0){
			v.push_back(f);
			n = n/f;
		}
		else f++;
	}
	if(n > 1) v.push_back(n);
	dp(0, 0, -1);
	cout << (int)ans.size() << "\n";
	for(set<int>::iterator it = ans.begin(); it != ans.end(); it++){
		cout << (*it) << " ";
	}
}

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