Submission #96394

#	Time	Username	Problem	Language	Result	Execution time	Memory
96394		easrui	Toys (CEOI18_toy)	C++14	100 / 100	833 ms	4496 KiB

toy

#include <bits/stdc++.h>
using namespace std;
int N;
set<int> S;

void act(int cur, int val, int sum)
{
    if(val>=cur) S.insert(sum+cur-1);
    if(cur==1) return;
    for(int i=2; i<=min(val,cur/i); i++){
        if(cur%i) continue;
        if(i<=val) act(cur/i,i,sum+i-1);
        if(cur/i<=val) act(i,cur/i,sum+cur/i-1);
    }
}

int main()
{
    ios_base::sync_with_stdio(0),cin.tie(0);
    cin >> N;
    act(N,N,0);
    cout << S.size() << '\n';
    for(auto it : S) cout << it << ' ';
}

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