Submission #424739

#	Time	Username	Problem	Language	Result	Execution time	Memory
424739		A_D	Toys (CEOI18_toy)	C++14	59 / 100	201 ms	30788 KiB

toy

#include <bits/stdc++.h>
#define int long long
#define ii pair<int,int>
#define F first
#define S second
#define du long double
using namespace std;
const int N=1e5+100;
vector<int> vec[N];
map<ii,bool>mp;
set<int> st;
void bc(int n,int sum)
{
    if(mp[{n,sum}])return;
    mp[{n,sum}]=1;
    if(n==1){
        st.insert(sum);
        return;
    }
    for(auto x:vec[n]){
        bc(n/x,sum+x-1);
    }
}
void solve()
{
    int n;
    cin>>n;
    for(int i=2;i<=n;i++){
        for(int j=1;j*j<=i;j++){
            if(i%j==0){
                if(j!=1)vec[i].push_back(j);
                if(j*j!=i)vec[i].push_back(i/j);
            }
        }
    }
    bc(n,0);
    cout<<st.size()<<endl;
    for(auto x:st)cout<<x<<" ";
}
main()
{
    int t=1;
    //cin>>t;
    while(t--)solve();
}

Compilation message (stderr)

toy.cpp:40:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   40 | main()
      | ^~~~

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