제출 #267049

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
267049		Kenzo_1114	Toys (CEOI18_toy)	C++17	19 / 100	1 ms	384 KiB

toy

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

int n, s[40];
vector<int> v;
vector<int> ans[40];
set<int> ANS;
set<int> :: iterator it;

int main ()
{
	scanf("%d", &n);

	int sq = sqrt(n) + 1;
	for(int i = 2; i <= sq; i++)
		while(n % i == 0)	
			n /= i, v.push_back(i);
	if(n > 1)	v.push_back(n);

	v.push_back(0);
	sort(v.begin(), v.end());

	int sz = v.size();
	s[0] = 1;
	for(int i = 1; i < sz; i++)	s[i] = s[i - 1] * v[i];

	ans[0].push_back(0);
	for(int i = 1; i < sz; i++)
		for(int j = 1; j <= i; j++)
			for(int k = 0; k < ans[j - 1].size(); k++)
				ans[i].push_back(ans[j - 1][k] + s[i] / s[j - 1] - 1);

/*
	for(int i = 0; i < sz; i++)
	{
		printf("\nans[%d] : \n", i);
		for(int j = 0; j < ans[i].size(); j++)	printf("%d ", ans[i][j]);
		printf("\n");
	}
*/

	for(int i = 0; i < ans[sz - 1].size(); i++)	ANS.insert(ans[sz - 1][i]);

	printf("%d\n", (int) ANS.size());
	for(it = ANS.begin(); it != ANS.end(); it++) printf("%d ", (*it));
	printf("\n");
}

컴파일 시 표준 에러 (stderr) 메시지

toy.cpp: In function 'int main()':
toy.cpp:30:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |    for(int k = 0; k < ans[j - 1].size(); k++)
      |                   ~~^~~~~~~~~~~~~~~~~~~
toy.cpp:42:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |  for(int i = 0; i < ans[sz - 1].size(); i++) ANS.insert(ans[sz - 1][i]);
      |                 ~~^~~~~~~~~~~~~~~~~~~~
toy.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   12 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~

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