Submission #948354

#	Time	Username	Problem	Language	Result	Execution time	Memory
948354		Minbaev	Toys (CEOI18_toy)	C++17	79 / 100	5065 ms	66360 KiB

toy

#include <bits/stdc++.h>

using namespace std;
 
int n,m,k;
set<int>ans;
vector<int>di;
map<pair<int,int>,int>vis;

void dfs(int x, int sum){
	
	vis[{x,sum}] = 1;
	
	if(x == 1){
		ans.insert(sum);
		return;
	}
	
	for(auto &to:di){
		if(x < to)break;
		if(x % to == 0 && vis[{x/to,sum+to-1}] == 0){
			dfs(x/to,sum + to-1);
		}
	}
	
}

void solve(){
	
	cin >> n;
		
	for(int i = 2;i*i <= n;i++){
		if(n % i == 0){
			di.push_back(i);
			if(n/i != i)di.push_back(n/i);
		}
	}
	di.push_back(n);
	sort(di.begin(),di.end());
	
	dfs(n,0);
	
	cout<<ans.size()<<"\n";
	for(auto to:ans)cout << to << " ";
	
}
/*
 
*/
signed main()
{	
	ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL);
	int tt=1;//cin>>tt>>n;
	while(tt--)solve();
 
}

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