답안 #570582

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
570582	2022-05-30T14:21:54 Z	TheEccentricDuck	Mobile (BOI12_mobile)	C++17	100 / 100	867 ms	17032 KB

mobile

//======================================================================================================================
// Name        : BOI12_MOBILE.cpp
// Author      : Jinchen Li
// Date Created: 5/30/2022
// Description : oj.uz, Mobile in C++, Ansi-style
//======================================================================================================================

// Directives
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <vector>
#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx,avx2")

// Main
int main() {
    // Initialisation
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);

    // Accepting Inputs
    int N;
    int L;
    std::cin >> N >> L;
    std::vector<double> x(N);
    std::vector<double> y(N);
    for (int i = 0; i < N; i++) {
        std::cin >> x[i] >> y[i];
    }

    // Processing Inputs
    double low = 1;
    double high = 1.5e9;
    while (high - low > 1e-3) {
        double mid = (low + high) / 2;
        double cur = 0;
        for (int i = 0; i < N; i++) {
            double delta = std::sqrt(mid * mid - y[i] * y[i]);
            double a = x[i] - delta;
            double b = x[i] + delta;
            if (a <= cur) {
                cur = std::max(cur, b);
            }
        }

        if (cur >= L) {
            high = mid;
        }
        else {
            low = mid;
        }
    }

    // Printing Outputs
    std::cout << std::fixed << std::setprecision(4) << low;
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	316 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct

Subtask #2
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	316 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	316 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	340 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	328 KB	Output is correct
4	Correct	2 ms	336 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	340 KB	Output is correct
2	Correct	4 ms	340 KB	Output is correct
3	Correct	5 ms	340 KB	Output is correct
4	Correct	4 ms	456 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	340 KB	Output is correct
2	Correct	6 ms	460 KB	Output is correct
3	Correct	4 ms	340 KB	Output is correct
4	Correct	5 ms	468 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	340 KB	Output is correct
2	Correct	5 ms	468 KB	Output is correct
3	Correct	4 ms	340 KB	Output is correct
4	Correct	6 ms	488 KB	Output is correct
5	Correct	5 ms	468 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	58 ms	1492 KB	Output is correct
2	Correct	56 ms	1748 KB	Output is correct
3	Correct	35 ms	1364 KB	Output is correct
4	Correct	60 ms	1748 KB	Output is correct
5	Correct	33 ms	1352 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	52 ms	1492 KB	Output is correct
2	Correct	59 ms	1576 KB	Output is correct
3	Correct	64 ms	1844 KB	Output is correct
4	Correct	66 ms	2020 KB	Output is correct
5	Correct	79 ms	2148 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	1620 KB	Output is correct
2	Correct	61 ms	1860 KB	Output is correct
3	Correct	63 ms	1904 KB	Output is correct
4	Correct	91 ms	2388 KB	Output is correct
5	Correct	67 ms	1964 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	75 ms	1876 KB	Output is correct
2	Correct	73 ms	2328 KB	Output is correct
3	Correct	71 ms	2124 KB	Output is correct
4	Correct	100 ms	2396 KB	Output is correct
5	Correct	80 ms	2268 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	78 ms	1876 KB	Output is correct
2	Correct	75 ms	2464 KB	Output is correct
3	Correct	72 ms	2124 KB	Output is correct
4	Correct	92 ms	2388 KB	Output is correct
5	Correct	96 ms	2304 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	334 ms	8148 KB	Output is correct
2	Correct	359 ms	8844 KB	Output is correct
3	Correct	373 ms	8792 KB	Output is correct
4	Correct	429 ms	8784 KB	Output is correct
5	Correct	382 ms	8796 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	362 ms	8148 KB	Output is correct
2	Correct	427 ms	9172 KB	Output is correct
3	Correct	337 ms	8908 KB	Output is correct
4	Correct	411 ms	8784 KB	Output is correct
5	Correct	389 ms	8976 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	443 ms	9704 KB	Output is correct
2	Correct	456 ms	13836 KB	Output is correct
3	Correct	441 ms	13724 KB	Output is correct
4	Correct	554 ms	13808 KB	Output is correct
5	Correct	472 ms	13828 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	449 ms	9720 KB	Output is correct
2	Correct	552 ms	10476 KB	Output is correct
3	Correct	404 ms	10480 KB	Output is correct
4	Correct	529 ms	10468 KB	Output is correct
5	Correct	453 ms	10476 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	505 ms	11276 KB	Output is correct
2	Correct	506 ms	15020 KB	Output is correct
3	Correct	534 ms	14984 KB	Output is correct
4	Correct	602 ms	15148 KB	Output is correct
5	Correct	552 ms	14964 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	552 ms	11272 KB	Output is correct
2	Correct	600 ms	11792 KB	Output is correct
3	Correct	476 ms	11800 KB	Output is correct
4	Correct	583 ms	11920 KB	Output is correct
5	Correct	540 ms	11944 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	540 ms	12836 KB	Output is correct
2	Correct	609 ms	13480 KB	Output is correct
3	Correct	564 ms	13544 KB	Output is correct
4	Correct	722 ms	13368 KB	Output is correct
5	Correct	599 ms	13360 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	601 ms	12840 KB	Output is correct
2	Correct	674 ms	13512 KB	Output is correct
3	Correct	528 ms	13500 KB	Output is correct
4	Correct	674 ms	13480 KB	Output is correct
5	Correct	639 ms	13348 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	675 ms	15988 KB	Output is correct
2	Correct	741 ms	16508 KB	Output is correct
3	Correct	712 ms	16716 KB	Output is correct
4	Correct	863 ms	16084 KB	Output is correct
5	Correct	768 ms	16780 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	757 ms	15972 KB	Output is correct
2	Correct	842 ms	17032 KB	Output is correct
3	Correct	684 ms	16808 KB	Output is correct
4	Correct	867 ms	16084 KB	Output is correct
5	Correct	754 ms	16772 KB	Output is correct

답안 #570582

Compilation message