Submission #444711

#	Time	Username	Problem	Language	Result	Execution time	Memory
444711		definitelynotmee	Toys (CEOI18_toy)	C++98	59 / 100	5078 ms	824 KiB

toy

#include<bits/stdc++.h>
#define mp make_pair
#define mt make_tuple
#define ff first
#define ss second
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const ll INFL = (1LL<<62)-1;
const int INF = (1<<30)-1;
const double EPS = 1e-7;
const int MOD = 1e9 + 7;
const int MAXN = 1e6+1;



int main(){

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

    int n;
    cin >> n;
    set<int> resp;
    function<void(int,int,int)> bt =[&resp,&bt](int n, int cur, int sum){
        if(n==1){
            resp.insert(sum);
            return;
        }
            
        for(int i = cur; i <= sqrt(n); i++){
            if(n%i == 0)
                bt(n/i,cur,sum+i-1);
        }
        //cout << "->" << n << ' ' << sum << '\n';
        bt(1,n,sum+n-1);
    };
    bt(n,2,0);
    cout << resp.size() << '\n';
    for(int i : resp)
        cout << i << ' ';
    cout << '\n';
    return 0;

}

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