Submission #1147434

#	Time	Username	Problem	Language	Result	Execution time	Memory
1147434		why1	Toys (CEOI18_toy)	C++20	100 / 100	3443 ms	115824 KiB

toy

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

#define ll long long
#define pb push_back
#define pii pair<int,int>
#define sz size()
#define all(v) v.begin(),v.end()
#define fi first
#define se second

map<pii,bool> used;
vector<int> st;
vector<int> v;

void calc(int n,int d,int l){
	used[{n,d}]=true;
	if(n==1){
		st.pb(d);
		return;
	}
	for(int j = l; j < v.sz; j++){
		int i=v[j];	
		if(n<i) break;
		if(n%i==0){
			if(i!=1 && !used[{n/i,d+i-1}])
				calc(n/i,d+i-1,j);
		}
	}
}

void solve() {
	int n;
	cin>>n;
	
	for(int i = 2; i*i <= n; i++){
		if(n%i==0){
			v.pb(i);
			if(i*i!=n)
				v.pb(n/i);
		}
	}
	v.pb(n);
	sort(all(v));

	calc(n,0,0);
	sort(all(st));
	vector<int> ans;
	for(auto i: st)
		if(ans.empty() || ans.back()!=i)
			ans.pb(i);
	cout<<ans.sz<<"\n";
	for(auto i: ans)
		cout<<i<<" ";
	cout<<"\n";
}

int main() {

  	//freopen("cowrun.in","r",stdin);
  	//freopen("cowrun.out","w",stdout);

    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

  	int t=1;
  	//cin>>t;
  	while(t--) {
          solve();
  	}

    return 0;
}

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