Submission #75380

#	Time	Username	Problem	Language	Result	Execution time	Memory
75380		doowey	Toys (CEOI18_toy)	C++14	0 / 100	2 ms	624 KiB

toy

    #include <bits/stdc++.h>
     
    using namespace std;
     
    typedef long long ll;
     
    typedef long double db;
    typedef pair<int,int> pii;
     
    #define fi first
    #define se second
    #define mp make_pair
    #define fastIO std::ios::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    #define TEST freopen("in.txt","r",stdin);
    #define ones(a) __builtin_popcount(a);
    #define pq priority_queue
     
    vector<int> divis;
     
    void divide(int n){
      for(int i = 1;i * i <= n;i  ++ ){
        if(n % i == 0){
          divis.push_back(i);
          if(i*i < n)
            divis.push_back(n/i);
        }
      }
      sort(divis.begin(), divis.end());
    }
      
     
    int main(){
      fastIO;
      int n;
      cin >> n;
      divide(n);
      int tot = divis.size();
      unordered_set<int> options[tot];
      options[0].insert(0);
      int fr, sr;
      for(int i = 0;i < tot;i ++ ){
        fr = divis[i];
        for(int j = i + 1;j < tot; j ++ ){
          sr = divis[j];
          if(sr % fr != 0)
            continue;
          sr /= fr;
          sr -- ;
          for(auto x : options[i])
            options[j].insert(x + sr);
        }
      }
      vector<int>answer;
      for(auto x : options[tot - 1]){
          answer.push_back(x);
      }
      cout << answer.size() << "\n";
      for(auto x : answer)  
        cout << x << " ";
      return 0;
    }

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