Submission #1042243

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1042243	2024-08-02T17:26:55 Z	sssamui	Mobile (BOI12_mobile)	C++17	0 / 100	663 ms	35164 KB

mobile

#include <iostream>
#include <cstdio>
#include <vector>
#include <cmath>
#include <stack>
#include <iomanip>
using namespace std;

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

	int n;
	double L;
	cin >> n >> L;
	vector<pair<double, double>> xy(n);
	for (int i = 0; i < n; i++) cin >> xy[i].first >> xy[i].second;

	double l = 0, r = 4e9;
	int it = 45;
	while (it--)
	{
		double m = (l + r) / 2;
		stack<pair<double, double>> c;
		for (int i = 0; i < n; i++) if (xy[i].second <= m)
		{
			double sq = sqrt(m * m - xy[i].second * xy[i].second);
			double a = fmax(0, xy[i].first - sq), b = fmin(L, xy[i].first + sq);
			while (!c.empty() && (c.top().second >= a))
			{
				a = fmin(a, c.top().first), b = fmax(b, c.top().second);
				c.pop();
			}

			c.push({ a, b });
		}

		if ((c.size() != 1) || ((c.top().first > 0) || (c.top().second < L))) l = m;
		else r = m;
	}

	cout << fixed << setprecision(3) << l;
}

Subtask #1
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	348 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #2
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	348 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #3
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	2 ms	348 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #4
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	3 ms	344 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	3 ms	348 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #6
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	4 ms	540 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	45 ms	1628 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #8
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	47 ms	1628 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #9
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	50 ms	1624 KB	Output is correct
2	Correct	50 ms	1628 KB	Output is correct
3	Correct	45 ms	1628 KB	Output is correct
4	Incorrect	66 ms	3924 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #10
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	60 ms	1884 KB	Output is correct
2	Correct	61 ms	1880 KB	Output is correct
3	Correct	56 ms	1884 KB	Output is correct
4	Incorrect	72 ms	3920 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #11
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	66 ms	2132 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #12
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	305 ms	8280 KB	Output is correct
2	Correct	334 ms	8280 KB	Output is correct
3	Correct	340 ms	8284 KB	Output is correct
4	Incorrect	320 ms	8284 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #13
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	306 ms	8284 KB	Output is correct
2	Incorrect	303 ms	8808 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #14
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	355 ms	9820 KB	Output is correct
2	Correct	369 ms	9820 KB	Output is correct
3	Correct	367 ms	9820 KB	Output is correct
4	Incorrect	454 ms	9820 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #15
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	369 ms	9816 KB	Output is correct
2	Incorrect	376 ms	10576 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #16
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	410 ms	11356 KB	Output is correct
2	Correct	443 ms	11356 KB	Output is correct
3	Correct	438 ms	11352 KB	Output is correct
4	Incorrect	460 ms	11356 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #17
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	432 ms	11356 KB	Output is correct
2	Incorrect	429 ms	12372 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #18
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	475 ms	13144 KB	Output is correct
2	Correct	503 ms	12892 KB	Output is correct
3	Correct	508 ms	12888 KB	Output is correct
4	Incorrect	539 ms	12892 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #19
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	493 ms	12888 KB	Output is correct
2	Incorrect	520 ms	13904 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #20
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	601 ms	15960 KB	Output is correct
2	Correct	630 ms	15960 KB	Output is correct
3	Correct	640 ms	15964 KB	Output is correct
4	Incorrect	663 ms	35164 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #21
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	634 ms	15964 KB	Output is correct
2	Incorrect	606 ms	17488 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Submission #1042243

Compilation message