Submission #490993

#	Time	Username	Problem	Language	Result	Execution time	Memory
490993		Rainbowbunny	Toys (CEOI18_toy)	C++17	100 / 100	1162 ms	11252 KiB

toy

#include <bits/stdc++.h>
using namespace std;
 
const int MAXN = 5005;
 
int n;
vector <int> Ans[MAXN];
 
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> n;
    vector <int> Div;
    for(int i = 1; i * i <= n; i++)
    {
        if(n % i == 0)
        {
            Div.push_back(i);
            if(n != i * i)
            {
                Div.push_back(n / i);
            }
        }
    }
    sort(Div.begin(), Div.end());
    for(int i = 0; i < (int)Div.size(); i++)
    {
        Ans[i].push_back(Div[i] - 1);
        for(int j = 1; j < i; j++)
        {
            if(Div[i] % Div[j])
            {
                continue;
            }
            int tmp = Div[i] / Div[j] - 1;
            vector <int> tt;
            int pt0 = 0, pt1 = 0;
            while(pt0 < (int)Ans[i].size() and pt1 < (int)Ans[j].size())
            {
                if(Ans[i][pt0] <= Ans[j][pt1] + tmp)
                {
                    if(tt.empty() or tt.back() != Ans[i][pt0])
                    {
                        tt.push_back(Ans[i][pt0]);
                    }
                    pt0++;
                }
                else
                {
                    if(tt.empty() or tt.back() != Ans[j][pt1] + tmp)
                    {
                        tt.push_back(Ans[j][pt1] + tmp);
                    }
                    pt1++;
                }
            }
            while(pt0 < (int)Ans[i].size())
            {
                if(tt.empty() or tt.back() != Ans[i][pt0])
                {
                    tt.push_back(Ans[i][pt0]);
                }
                pt0++;
            }
            while(pt1 < (int)Ans[j].size())
            {
                if(tt.empty() or tt.back() != Ans[j][pt1] + tmp)
                {
                    tt.push_back(Ans[j][pt1] + tmp);
                }
                pt1++;
            }
            Ans[i].swap(tt);
        }
    }
    cout << Ans[(int)Div.size() - 1].size() << '\n';
    for(auto x : Ans[(int)Div.size() - 1])
    {
        cout << x << ' ';
    }
    cout << '\n';
}

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