제출 #569868

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
569868		Karnis_052	Balloons (CEOI11_bal)	C++17	100 / 100	539 ms	7032 KiB

bal

// Bismillahir Rahmanir Rahim
#include<bits/stdc++.h>
using namespace std;
typedef long long int  ll;
typedef pair<int, int>PI;
typedef pair<ll, ll > PL;
typedef vector<int>VI;
typedef vector<ll>VL;
#define FF first
#define SS second
const int mod = 1e9 + 7;
const int INF = 1e9;
const int N = 1e5 + 5;
// it's a oj.uz problem
int main()
{
	ios::sync_with_stdio(false);   cin.tie(0); cout.tie(0);
	int n;
	cin >> n;
	stack < pair<double, double>>st;
	for (int i = 0; i < n; i++)
	{
		long double x, r;
		cin >> x >> r;
		while (!st.empty())
		{
			long double x1 = st.top().FF, r1 = st.top().SS;
			long double nw = (x1 - x) * (x1 - x) / (4 * r1);
			r = min(r, nw);
			if (r >= r1)
				st.pop();
			else break;

		}
		st.push({x, r});
		cout << fixed << setprecision(3);
		cout << r << endl;
	}

	cerr << "time taken : " << (float)clock() / CLOCKS_PER_SEC << " secs" << endl;
	return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10