Submission #405155

#	Time	Username	Problem	Language	Result	Execution time	Memory
405155		dreezy	Balloons (CEOI11_bal)	C++17	20 / 100	739 ms	6516 KiB

bal

#include <bits/stdc++.h>
using namespace std;
#define ld long double

int main(){
	int n; cin >> n;
	
	cout << fixed<< setprecision(3);
	
	stack<pair<ld, int>> balloons;

	
	for(int i =0; i< n; i++){
		int x;
		ld r;
		cin >> x >> r;
		
		
		while(balloons.size()){
			ld r1 = balloons.top().first;
			int x1 = balloons.top().second;
			
			r = min(r, (x - x1) * (x-x1) / r1 / 4);
			
			if( r > r1)
				balloons.pop();
			else
				break;
		}
		cout << r << endl;
		
		balloons.push({r, x});
	}
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 10 / 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