Submission #1042242

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1042242	2024-08-02T17:25:43 Z	sssamui	Mobile (BOI12_mobile)	C++17	0 / 100	716 ms	32620 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++)
		{
			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	1 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	3 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	716 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	4 ms	344 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	348 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	49 ms	2396 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	2396 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	2460 KB	Output is correct
2	Correct	52 ms	2904 KB	Output is correct
3	Incorrect	65 ms	2652 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #10
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	63 ms	3420 KB	Output is correct
2	Correct	59 ms	3420 KB	Output is correct
3	Incorrect	66 ms	2908 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #11
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	61 ms	3668 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #12
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	292 ms	12368 KB	Output is correct
2	Correct	311 ms	15880 KB	Output is correct
3	Correct	302 ms	15332 KB	Output is correct
4	Incorrect	321 ms	17628 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #13
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	300 ms	16356 KB	Output is correct
2	Incorrect	299 ms	15432 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #14
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	332 ms	14932 KB	Output is correct
2	Correct	378 ms	19284 KB	Output is correct
3	Correct	349 ms	18516 KB	Output is correct
4	Incorrect	471 ms	21480 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #15
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	367 ms	19696 KB	Output is correct
2	Incorrect	382 ms	18420 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #16
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	411 ms	17236 KB	Output is correct
2	Correct	420 ms	22100 KB	Output is correct
3	Correct	430 ms	21380 KB	Output is correct
4	Incorrect	467 ms	24720 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #17
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	427 ms	22916 KB	Output is correct
2	Incorrect	420 ms	21588 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #18
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	451 ms	19892 KB	Output is correct
2	Correct	508 ms	25168 KB	Output is correct
3	Correct	469 ms	24400 KB	Output is correct
4	Incorrect	532 ms	28500 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #19
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	491 ms	25936 KB	Output is correct
2	Incorrect	493 ms	24656 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #20
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	604 ms	24660 KB	Output is correct
2	Correct	600 ms	31572 KB	Output is correct
3	Incorrect	716 ms	30544 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #21
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	632 ms	32620 KB	Output is correct
2	Incorrect	599 ms	30548 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Submission #1042242

Compilation message