Submission #537243

#	Time	Username	Problem	Language	Result	Execution time	Memory
537243		perchuts	Toys (CEOI18_toy)	C++17	59 / 100	5038 ms	460 KiB

toy

#include <bits/stdc++.h>
#define maxn (int)(1e5+51)
#define all(x) x.begin(), x.end()
#define sz(x) (int) x.size()
#define endl '\n'
#define ll long long
#define pb push_back
#define ull unsigned long long
#define ii pair<int,int>
#define iii tuple<int,int,int>
#define inf 2000000001
#define mod 1000000007 //998244353
#define _ ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);

using namespace std;

template<typename X, typename Y> bool ckmin(X& x, const Y& y) { return (y < x) ? (x=y,1):0; }
template<typename X, typename Y> bool ckmax(X& x, const Y& y) { return (x < y) ? (x=y,1):0; }

set<int>res;
int n;

void test(int x, int sum){
    if(x==n){
        res.insert(sum);
        return;
    }else if(x>n)return;
    for(int i=1;i<=n/x;++i){
        if(n%x*(i+1)!=0)continue;
        test(x*(i+1),sum+i);
    }

}

int main(){_
    cin>>n;
    // int sq = sqrt(n)+1;
    // int tmp = n;
    // vector<int>factors;
    // for(int i=2;i<=sq;++i){
    //     while(tmp%i==0){
    //         factors.pb(i);
    //         tmp/=i;
    //     }
    // }    
    // if(tmp!=1)factors.pb(tmp);
    test(1,0);
    cout<<sz(res)<<endl;
    for(auto x:res)cout<<x<<" ";
}

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