Submission #1146585

#	Time	Username	Problem	Language	Result	Execution time	Memory
1146585		why1	Toys (CEOI18_toy)	C++20	79 / 100	5090 ms	2520 KiB

toy

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

#include <chrono>
using namespace std::chrono;

#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

const int N = 5e5;
const int mod = 1e9+7;
const ll INF = 1e18;

const int di[] = {1, -1, 0, 0};
const int dj[] = {0, 0, 1, -1};

set<int> ans;
vector<int> d;

void calc(int n,int x,int l=0){
	if(n==1){
		ans.insert(x);
		return;
	}
	for(int i = l; i < d.sz; i++){
		if(d[i]<=n && n%d[i]==0){
			calc(n/d[i],x+d[i]-1,i);
		}
	}
}
 
void solve() {
	int n;
	cin>>n;

	for(int i = 2; i*i <= n; i++){
		if(n%i==0){
			d.pb(i);
			if(i*i!=n)
				d.pb(n/i);
		}
	}
	d.pb(n);
	sort(all(d));

	calc(n,0);
	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);

	auto start = high_resolution_clock::now();

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

	auto stop = high_resolution_clock::now();
	auto duration = duration_cast<microseconds>(stop - start);
	//cout << "TIMER: " << duration.count() << "\n";

    return 0;
}

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