Submission #78897

#	Time	Username	Problem	Language	Result	Execution time	Memory
78897		aminra	Toys (CEOI18_toy)	C++14	59 / 100	23 ms	1660 KiB

toy

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
const int MOD = (int)1e9 + 7;
const int MAXN = (int)3000 + 7;
const int infint = (int)1e9;
vector<int> dv, c[MAXN];
set<int> dp[MAXN];
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	int n;
	cin >> n;
	for (int i = 1; i * i <= n; i++)
	{
		dv.push_back(i);
		if(i * i != n)
			dv.push_back(n / i);
	}
	sort(dv.begin(), dv.end());
	
	for (int j = 1; j < dv.size(); j++)
		for (int i = 0; i < j; i++)
			if(dv[j] % dv[i] == 0)
				c[j].push_back(i);
	dp[0].insert(0);
	for (int i = 1; i < dv.size(); i++)
		for (auto j : c[i])
				for (auto u : dp[j])
					dp[i].insert(u + dv[i] / dv[j] - 1);
	cout << dp[dv.size() - 1].size() << "\n";
	for (auto u : dp[dv.size() - 1])
		cout << u << " ";
}

Compilation message (stderr)

toy.cpp: In function 'int main()':
toy.cpp:24:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int j = 1; j < dv.size(); j++)
                  ~~^~~~~~~~~~~
toy.cpp:29:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 1; i < dv.size(); i++)
                  ~~^~~~~~~~~~~

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