Submission #975335

#	Time	Username	Problem	Language	Result	Execution time	Memory
975335		IBory	Toys (CEOI18_toy)	C++17	100 / 100	1138 ms	139220 KiB

toy

#include <bits/stdc++.h>
using namespace std;

const int MAX = 222222;
vector<int> D, S[MAX];

int main() {
	int N;
	cin >> N;

	for (int i = 1; i * i <= N; ++i) {
		if (N % i) continue;
		D.push_back(i);
		if (i * i != N) D.push_back(N / i);
	}
	sort(D.begin(), D.end());
	S[0].push_back(0);

	for (int i = 0; i < D.size(); ++i) {
		sort(S[i].begin(), S[i].end());
		S[i].erase(unique(S[i].begin(), S[i].end()), S[i].end());
		for (int j = i + 1; j < D.size(); ++j) {
			if (D[j] % D[i]) continue;
			for (int n : S[i]) S[j].push_back(n + D[j] / D[i] - 1);
		}
	}

	cout << S[D.size() - 1].size() << '\n';
	for (int n : S[D.size() - 1]) cout << n << ' ';
	return 0;
}

Compilation message (stderr)

toy.cpp: In function 'int main()':
toy.cpp:19:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |  for (int i = 0; i < D.size(); ++i) {
      |                  ~~^~~~~~~~~~
toy.cpp:22:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   for (int j = i + 1; j < D.size(); ++j) {
      |                       ~~^~~~~~~~~~

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