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Submission #441032

# Submission time Handle Problem Language Result Execution time Memory
441032 2021-07-03T23:23:02 Z penguinhacker Balloons (CEOI11_bal) C++14
100 / 100
 261 ms 5452 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout << fixed << setprecision(3);
	int n;
	cin >> n;
	vector<pair<int, double>> v;
	while(n--) {
		int x;
		double r;
		cin >> x >> r;
		while(v.size()) {
			double dx=x-v.back().first;
			r=min(r, dx*dx/(4*v.back().second));
			if (r>=v.back().second)
				v.pop_back();
			else
				break;
		}
		cout << r << "\n";
		v.emplace_back(x, r);
	}
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB 10 numbers

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB 2 numbers

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB 505 numbers

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 332 KB 2000 numbers

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 368 KB 20000 numbers

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 1084 KB 50000 numbers
2 Correct 65 ms 1524 KB 49912 numbers

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 123 ms 1340 KB 100000 numbers

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 132 ms 1540 KB 115362 numbers
2 Correct 142 ms 3376 KB 119971 numbers

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 176 ms 1768 KB 154271 numbers
2 Correct 212 ms 5452 KB 200000 numbers

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 261 ms 2016 KB 200000 numbers
2 Correct 219 ms 5448 KB 199945 numbers