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답안 #914983

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
914983 2024-01-23T05:13:23 Z Em1L Mobile (BOI12_mobile) C++14
12 / 100
 1000 ms 8284 KB 
#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using pii = pair<int, int>;
using tiiii = tuple<int, int, ll, ll>;

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);

    int n, L; cin >> n >> L;

    vector < int > x(n), y(n);

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

    auto Good = [&](double dist) {
        double r = 0;

        for (int i = 0; i < n; i++) {
            if (y[i] > dist)
                continue;

            double left = x[i] - sqrtl(dist * dist - y[i] * y[i]);
            double right = x[i] + sqrtl(dist * dist - y[i] * y[i]);

            if (left <= r)
                r = max(r, right);
        }

        return r >= L;
    };

    double l = -0.1, m, r = 2e+9;

    for (int i = 0; i < 200; i++) {
        m = (l + r) / 2;

        if (Good(m))
            r = m;
        else
            l = m;
    }

    cout << setprecision(16) << fixed << r << "\n";
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 560 KB Output is correct

Subtask #3
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 348 KB Output is correct
2 Correct 3 ms 348 KB Output is correct
3 Correct 7 ms 488 KB Output is correct
4 Correct 3 ms 348 KB Output is correct

Subtask #4
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 344 KB Output is correct
2 Correct 6 ms 348 KB Output is correct
3 Correct 5 ms 348 KB Output is correct
4 Incorrect 14 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 344 KB Output is correct
2 Correct 6 ms 348 KB Output is correct
3 Correct 4 ms 348 KB Output is correct
4 Incorrect 15 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 348 KB Output is correct
2 Correct 6 ms 560 KB Output is correct
3 Correct 5 ms 348 KB Output is correct
4 Incorrect 13 ms 572 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 102 ms 860 KB Output is correct
2 Incorrect 74 ms 1884 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 252 ms 856 KB Output is correct
2 Correct 291 ms 1816 KB Output is correct
3 Incorrect 309 ms 1884 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #9
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 100 ms 1136 KB Output is correct
2 Incorrect 92 ms 1112 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #10
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 118 ms 1224 KB Output is correct
2 Incorrect 96 ms 2648 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #11
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 111 ms 1232 KB Output is correct
2 Incorrect 96 ms 1228 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #12
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 564 ms 4616 KB Output is correct
2 Incorrect 488 ms 4432 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #13
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 481 ms 4364 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #14
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 678 ms 4956 KB Output is correct
2 Incorrect 584 ms 5200 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #15
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 683 ms 4952 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #16
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 816 ms 5924 KB Output is correct
2 Incorrect 699 ms 5928 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 684 ms 5940 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 915 ms 6708 KB Output is correct
2 Incorrect 764 ms 6708 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 914 ms 6708 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #20
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1067 ms 8284 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #21
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 950 ms 8284 KB Output isn't correct
2 Halted 0 ms 0 KB -