제출 #442662

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
442662		oneskovic	Balloons (CEOI11_bal)	C++14	10 / 100	2096 ms	3856 KiB

bal

#include <algorithm>
#include <iostream>
#include <iomanip>
#include <vector>
#include <stack>
using namespace std;
typedef long long ll;

struct stack_element
{
	double x, radius;
};

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);

	int n; cin >> n;
	vector<stack_element> elements(n);
	for (int i = 0; i < n; i++)
	{
		cin >> elements[i].x >> elements[i].radius;
		double new_x = elements[i].x, max_radius = elements[i].radius;
		for (int j = 0; j < i; j++)
		{
			double prev_radius = elements[j].radius;
			double prev_x = elements[j].x;
			double dx = (prev_x - new_x);
			double radius_to_intersect = (dx * dx / (2.0 * prev_radius)) / 2.0;
			if (radius_to_intersect < max_radius)
			{
				max_radius = radius_to_intersect;
			}
		}
		cout << fixed << setprecision(5);
		cout << max_radius << "\n";
	}

	/*stack<stack_element> s;
	for (int i = 0; i < n; i++)
	{
		double new_x, max_radius; cin >> new_x >> max_radius;

		while (!s.empty())
		{
			double prev_radius = s.top().radius;
			double prev_x = s.top().x;
			double dx = (prev_x - new_x);
			double radius_to_intersect = (dx*dx / (2 * prev_radius)) / 2.0;
			if (radius_to_intersect < max_radius)
			{
				max_radius = radius_to_intersect;
				s.pop();
			}
			else
				break;
		}
		s.push({ new_x,max_radius });
		cout << fixed << setprecision(5);
		cout << max_radius << "\n";
	}
	*/
	return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
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• Subtask 9: 0 / 10
• Subtask 10: 0 / 10