Submission #1066372

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1066372	2024-08-19T19:23:51 Z	JohnnyVenturas	Mobile (BOI12_mobile)	C++17	12 / 100	623 ms	8240 KB

mobile

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 1e6;

struct point {
    int x, y;
};

point receivers[MAXN];

double first_true(double low, double high, function<bool(double)> f) {
    --low, ++high;
    double mid;
    while (high - low > 1e-3) {
        mid = low + (high - low) /2;
        if (f(mid)) {
            high = mid;
        } else {
            low = mid;
        }
    }

    return high;
}

int main() {
    int n, l;
    cin >> n >> l;

    for (int i = 0; i < n; ++i) {
        cin >> receivers[i].x >> receivers[i].y;
    }

    cout << fixed << setprecision(4) << first_true(0, 2e9, [&](double r) {
        double high = 0;

        for (int i = 0; i < n; ++i) {
            double left = receivers[i].x -
                           sqrt(r * r - receivers[i].y * receivers[i].y);
            double right =  receivers[i].x +
                           sqrt(r * r - receivers[i].y * receivers[i].y);

            if (left <= high) {
                high = max(high, right);
            }
        }

        return high >= l;
    });
}

Subtask #1
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	600 KB	Output is correct

Subtask #2
4.0 / 4.0

#	Verdict	Memory	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct

Subtask #3
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	3 ms	348 KB	Output is correct

Subtask #4
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	348 KB	Output is correct
2	Correct	3 ms	344 KB	Output is correct
3	Correct	3 ms	348 KB	Output is correct
4	Incorrect	4 ms	344 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #5
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	348 KB	Output is correct
2	Correct	3 ms	476 KB	Output is correct
3	Correct	3 ms	348 KB	Output is correct
4	Incorrect	3 ms	348 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #6
0 / 5.0

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

Subtask #7
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	41 ms	2652 KB	Output is correct
2	Incorrect	37 ms	2652 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #8
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	40 ms	2648 KB	Output is correct
2	Correct	38 ms	2652 KB	Output is correct
3	Incorrect	56 ms	2660 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #9
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	31 ms	2652 KB	Output is correct
2	Incorrect	40 ms	2648 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #10
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	56 ms	2652 KB	Output is correct
2	Incorrect	48 ms	1196 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #11
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	51 ms	1104 KB	Output is correct
2	Incorrect	54 ms	1136 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #12
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	183 ms	4288 KB	Output is correct
2	Incorrect	311 ms	4176 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #13
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	279 ms	4692 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #14
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	241 ms	6748 KB	Output is correct
2	Incorrect	329 ms	6736 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #15
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	341 ms	6744 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #16
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	310 ms	6736 KB	Output is correct
2	Incorrect	376 ms	6740 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #17
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	391 ms	6740 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #18
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	382 ms	6740 KB	Output is correct
2	Incorrect	474 ms	6756 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #19
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	448 ms	6744 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #20
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	382 ms	8240 KB	Output is correct
2	Incorrect	568 ms	8020 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #21
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	623 ms	8028 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Submission #1066372

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