Submission #131151

#	Time	Username	Problem	Language	Result	Execution time	Memory
131151		Vardanyan	Toys (CEOI18_toy)	C++14	79 / 100	5025 ms	72660 KiB

toy

#include <bits/stdc++.h>
using namespace std;
map<int,int> s;
map<pair<int,int>,int> mp;
vector<int> ans;
vector<int> divs[1000*1000+1];
void rec(int n,int sm){
    if(mp[{n,sm}]) return;
    mp[{n,sm}] = 1;
    if(n == 1){
        if(!s[sm]){
            ans.push_back(sm);
            s[sm] = 1;
        }
        return;
    }
    if(n>1000*1000 || divs[n].size() == 0){
        for(int i = 1;i*i<=n;i++){
            if(n%i) continue;
           if(i>1){
              rec(n/i,sm+i-1);
           if(n<=1000000)   divs[n].push_back(i);
           }
            int x = n/i;
            rec(n/x,sm+x-1);
         if(n<=1000000)   divs[n].push_back(x);
        }
    }
    else{
        for(int i = 0;i<divs[n].size();i++){
            int x = divs[n][i];
            rec(n/x,sm+x-1);
        }
    }
}
int main(){
    ios_base::sync_with_stdio(false);
    int n;
    cin>>n;
    rec(n,0);
    cout<<ans.size()<<endl;
    sort(ans.begin(),ans.end());
    for(int i = 0;i<ans.size();i++) cout<<ans[i]<<" ";
    cout<<endl;
    return 0;
}

Compilation message (stderr)

toy.cpp: In function 'void rec(int, int)':
toy.cpp:30:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0;i<divs[n].size();i++){
                       ~^~~~~~~~~~~~~~~
toy.cpp: In function 'int main()':
toy.cpp:43:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0;i<ans.size();i++) cout<<ans[i]<<" ";
                   ~^~~~~~~~~~~

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