답안 #888117

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
888117	2023-12-16T04:23:39 Z	eysbutno	Mobile (BOI12_mobile)	C++11	100 / 100	331 ms	35456 KB

mobile

#include <bits/stdc++.h>

#define x first

#define y second

using namespace std;


pair<long long, long long> p[1000000];


int main() {

	ios_base::sync_with_stdio(0);

	cin.tie(0);

	int n, len;

	cin >> n >> len;

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


	double l = 1, r = 1.5e9;

	while (r - l > 1e-3) {

		double mid = (l + r) / 2, curr = 0;

		for (int i = 0; i < n; i++) {

			double delta = sqrt(mid * mid - p[i].y * p[i].y);

			double a = p[i].x - delta, b = p[i].x + delta;

			if (a <= curr) curr = max(curr, b);

		}


		if (curr >= len) r = mid;

		else l = mid;

	}


	cout << fixed << setprecision(4) << l;

	return 0;

}

Subtask #1
4.0 / 4.0

#	결과	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	344 KB	Output is correct
4	Correct	348 KB	Output is correct

Subtask #2
4.0 / 4.0

#	결과	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	468 KB	Output is correct
4	Correct	348 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 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	348 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	348 KB	Output is correct
2	Correct	2 ms	548 KB	Output is correct
3	Correct	2 ms	604 KB	Output is correct
4	Correct	2 ms	604 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	344 KB	Output is correct
2	Correct	2 ms	600 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	2 ms	604 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	600 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	2 ms	856 KB	Output is correct
5	Correct	2 ms	348 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	2648 KB	Output is correct
2	Correct	22 ms	3952 KB	Output is correct
3	Correct	13 ms	3164 KB	Output is correct
4	Correct	25 ms	3672 KB	Output is correct
5	Correct	12 ms	2904 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	2648 KB	Output is correct
2	Correct	20 ms	3416 KB	Output is correct
3	Correct	23 ms	3676 KB	Output is correct
4	Correct	24 ms	3676 KB	Output is correct
5	Correct	31 ms	4560 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	18 ms	2652 KB	Output is correct
2	Correct	20 ms	2652 KB	Output is correct
3	Correct	20 ms	3416 KB	Output is correct
4	Correct	32 ms	4444 KB	Output is correct
5	Correct	24 ms	3420 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	2652 KB	Output is correct
2	Correct	24 ms	3932 KB	Output is correct
3	Correct	24 ms	3704 KB	Output is correct
4	Correct	34 ms	4436 KB	Output is correct
5	Correct	28 ms	3932 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	2648 KB	Output is correct
2	Correct	25 ms	4092 KB	Output is correct
3	Correct	26 ms	3672 KB	Output is correct
4	Correct	32 ms	4480 KB	Output is correct
5	Correct	28 ms	3932 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	105 ms	8832 KB	Output is correct
2	Correct	121 ms	16468 KB	Output is correct
3	Correct	122 ms	16108 KB	Output is correct
4	Correct	163 ms	18168 KB	Output is correct
5	Correct	142 ms	15604 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	121 ms	8572 KB	Output is correct
2	Correct	187 ms	15220 KB	Output is correct
3	Correct	115 ms	14436 KB	Output is correct
4	Correct	155 ms	18000 KB	Output is correct
5	Correct	150 ms	16140 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	124 ms	10872 KB	Output is correct
2	Correct	146 ms	20080 KB	Output is correct
3	Correct	143 ms	19448 KB	Output is correct
4	Correct	192 ms	22788 KB	Output is correct
5	Correct	168 ms	18772 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	146 ms	10836 KB	Output is correct
2	Correct	223 ms	18948 KB	Output is correct
3	Correct	138 ms	17492 KB	Output is correct
4	Correct	191 ms	22624 KB	Output is correct
5	Correct	173 ms	19824 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	145 ms	12880 KB	Output is correct
2	Correct	169 ms	23632 KB	Output is correct
3	Correct	167 ms	22908 KB	Output is correct
4	Correct	223 ms	26448 KB	Output is correct
5	Correct	192 ms	21976 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	170 ms	12920 KB	Output is correct
2	Correct	243 ms	22000 KB	Output is correct
3	Correct	166 ms	21332 KB	Output is correct
4	Correct	220 ms	26096 KB	Output is correct
5	Correct	199 ms	23080 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	171 ms	14980 KB	Output is correct
2	Correct	195 ms	27532 KB	Output is correct
3	Correct	192 ms	26480 KB	Output is correct
4	Correct	266 ms	31116 KB	Output is correct
5	Correct	227 ms	26148 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	193 ms	14928 KB	Output is correct
2	Correct	272 ms	25424 KB	Output is correct
3	Correct	187 ms	24404 KB	Output is correct
4	Correct	258 ms	30472 KB	Output is correct
5	Correct	232 ms	26348 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	203 ms	15952 KB	Output is correct
2	Correct	260 ms	31652 KB	Output is correct
3	Correct	247 ms	30548 KB	Output is correct
4	Correct	323 ms	35408 KB	Output is correct
5	Correct	288 ms	29556 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	238 ms	16260 KB	Output is correct
2	Correct	331 ms	29300 KB	Output is correct
3	Correct	233 ms	28244 KB	Output is correct
4	Correct	323 ms	35456 KB	Output is correct
5	Correct	292 ms	30856 KB	Output is correct

답안 #888117

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