Submission #943375

#	Time	Username	Problem	Language	Result	Execution time	Memory
943375		Aiperiii	Toys (CEOI18_toy)	C++14	100 / 100	2622 ms	90412 KiB

toy

#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
signed main(){
    ios_base::sync_with_stdio();
    cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    vector <int> v;
    for(int i=1;i*i<=n;i++){
        if(n%i==0){
            v.pb(i);
            if(i!=n/i)v.pb(n/i);
        }
    }
    sort(all(v));
    set <int> res;
    map <int,set <int> > sum;
    sum[1].insert(0);
    for(int i=0;i<v.size();i++){
        for(int j=0;j<i;j++){
            if(v[i]%v[j]==0){
                for(auto x : sum[v[j]])sum[v[i]].insert(x+v[i]/v[j]-1);
            }
        }
    }
    for(auto x : sum[n])res.insert(x);
    cout<<res.size()<<"\n";
    for(auto x : res)cout<<x<<" ";
    cout<<"\n";
    
}
/*
 
*/

Compilation message (stderr)

toy.cpp: In function 'int main()':
toy.cpp:24:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int i=0;i<v.size();i++){
      |                 ~^~~~~~~~~

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