Submission #942860

#	Time	Username	Problem	Language	Result	Execution time	Memory
942860		vjudge1	Toys (CEOI18_toy)	C++17	59 / 100	5089 ms	1476 KiB

toy

#include <bits/stdc++.h>
 
using namespace std;
 
#define int long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
 
const int INF = 1e18,N = 1e5 + 1;
const int p = 911382323, m = 972663749;
 
int binpow (int a, int n) {
	if (n == 0)
		return 1;
	if (n % 2 == 1)
		return (binpow(a, n - 1) * (a));
	else {
		int b = binpow(a, n / 2);
		return (b * b) ;
	}
}

set<int> res;

void when(int n,int sum){
	sum += n - 1;
	res.insert(sum);
	sum -= n - 1;
	for(int dv = 1;dv * dv <= n;dv++){
		if(dv == 1){
			continue;
		}
		if(n % dv == 0){
			sum += dv - 1;
			when(n / dv,sum);
			sum -= dv - 1;
		}
	}
}

void solve(){

	int n;
	cin >> n;
	when(n,0);
	cout << res.size() << "\n";
	for(auto i : res){
		cout << i << " ";
	}
	
}
 
signed main(){
	
	ios_base::sync_with_stdio(0);
	cin.tie(0),cout.tie(0);
	
	int t = 1;
	//~ cin >> t;
	while(t--){
		solve();
	}
}
	

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