Submission #1283800

#	Time	Username	Problem	Language	Result	Execution time	Memory
1283800		Jawad_Akbar_JJ	Balloons (CEOI11_bal)	C++20	0 / 100	104 ms	8140 KiB

bal

#include <iostream>
#include <iomanip>
#include <stack>

using namespace std;
long double x[1<<18], r[1<<18];

int main(){
	ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	cout<<fixed<<setprecision(3);

	int n;
	cin>>n;

	for (int i=1;i<=n;i++)
		cin>>x[i]>>r[i];
	
	stack<int> stk;
	stk.push(1);

	for (int i=2;i<=n;i++){
		while (stk.size() > 0){
			int id = stk.top();
			long double R = ((x[i] - x[id]) * (x[i] - x[id])) / (r[id] * 4);
			R = min(R, r[i]);

			if (r[i] <= r[id]){
				r[i] = R;
				break;
			}
			stk.pop();
		}
		while (stk.size() > 0 and r[stk.top()] <= r[i])
			stk.pop();
		stk.push(i);
	}
	for (int i=1;i<=n;i++)
		cout<<r[i]<<'\n';
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10