Submission #920807

#	Time	Username	Problem	Language	Result	Execution time	Memory
920807		Faisal_Saqib	Toys (CEOI18_toy)	C++17	100 / 100	3282 ms	90372 KiB

toy

#include <iostream>
#include <map>
#include <algorithm>
#include <set>
#include <vector>
using namespace std;
map<int,set<int>> mp;
vector<int> dvv;
void pos(int x)
{
    auto it=mp.find(x);
    if(it!=mp.end())
        return;
    mp[x]={};
    it=mp.find(x);
    it->second.insert(x-1);
    // for(long long d=2;(d*d)<=x;d++)
    for(auto&d:dvv)
    {
        if(d>=x)
        {
            break;
        }
        if(x%d==0)
        {
            int rem=x/d;
            pos(rem);
            for(auto&j:*(&mp[rem]))
                it->second.insert(j+(d-1));
            if((d*d)!=x)
            {
                d=x/d;
                int rem=x/d;
                pos(rem);
                for(auto&j:*(&mp[rem]))
                    it->second.insert(j+(d-1));                
                d=x/d;
            }
        }
    }
}
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios::sync_with_stdio(0);
    int n;
    cin>>n;
    for(int j=2;(j*j)<=n;j++)
    {
        if(n%j==0)
        {
            dvv.push_back(j);
            if((j*j)!=n)
                dvv.push_back(n/j);
        }
    }
    dvv.push_back(n);
    sort(begin(dvv),end(dvv));
    pos(n);
    auto tlp=mp[n];
    cout<<tlp.size()<<endl;
    for(auto j:tlp)
    {
        cout<<j<<' ';
    }
    cout<<endl;
}

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