Submission #650491

#	Time	Username	Problem	Language	Result	Execution time	Memory
650491		fatemetmhr	Toys (CEOI18_toy)	C++17	100 / 100	1718 ms	133704 KiB

toy

//  ~Be name khoda~  //

#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

#define pb       push_back
#define mp       make_pair
#define all(x)   x.begin(), x.end()
#define fi       first
#define se       second
#define cl       clear
#define endll    '\n'

const int maxn  =  1e6   + 10;
const int maxn5 =  1e6   + 10;
const int maxnt =  1.2e6 + 10;
const int maxn3 =  1e3   + 10;
const int mod   =  1e9   +  7;
const ll  inf   =  2e18;

set <int> av[maxn5];
map <int, int> ind;
int newnode = 0;

inline void solve(int n){
	ind[n] = newnode++;
	int vn = ind[n];
	av[vn].insert(n - 1);
	for(int i = 2; i * i <= n; i++) if(n % i == 0){
		if(ind.find(n / i) == ind.end()) solve(n / i);
		int vi = ind[n / i];
		for(auto it = av[vi].begin(); it != av[vi].end(); it++)
			av[vn].insert((*it) + i - 1);
	}
	return;
}

int main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	
	int n; cin >> n;
	solve(n);
	int vn = ind[n];
	cout << av[vn].size() << '\n';
	for(auto it = av[vn].begin(); it != av[vn].end(); it++) cout << *it << ' ';
	cout << endl;
}

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