답안 #1022989

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1022989	2024-07-14T08:28:37 Z	tkvinhtruongquang	Mobile (BOI12_mobile)	C++14	100 / 100	343 ms	35532 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	실행 시간	메모리	Grader output
1	Correct	0 ms	344 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	0 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 #3
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	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	604 KB	Output is correct
3	Correct	2 ms	580 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	348 KB	Output is correct
2	Correct	2 ms	476 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	2 ms	544 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	536 KB	Output is correct
2	Correct	2 ms	604 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	2 ms	604 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	2396 KB	Output is correct
2	Correct	20 ms	2652 KB	Output is correct
3	Correct	13 ms	1880 KB	Output is correct
4	Correct	25 ms	2652 KB	Output is correct
5	Correct	12 ms	1628 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	2392 KB	Output is correct
2	Correct	19 ms	2136 KB	Output is correct
3	Correct	23 ms	2652 KB	Output is correct
4	Correct	23 ms	2796 KB	Output is correct
5	Correct	27 ms	3292 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	2396 KB	Output is correct
2	Correct	20 ms	2816 KB	Output is correct
3	Correct	21 ms	2556 KB	Output is correct
4	Correct	32 ms	3960 KB	Output is correct
5	Correct	24 ms	2904 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	25 ms	3420 KB	Output is correct
2	Correct	25 ms	3412 KB	Output is correct
3	Correct	23 ms	3052 KB	Output is correct
4	Correct	34 ms	3988 KB	Output is correct
5	Correct	29 ms	3160 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	3408 KB	Output is correct
2	Correct	25 ms	3416 KB	Output is correct
3	Correct	23 ms	2908 KB	Output is correct
4	Correct	35 ms	3872 KB	Output is correct
5	Correct	28 ms	3164 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	107 ms	12380 KB	Output is correct
2	Correct	123 ms	15780 KB	Output is correct
3	Correct	126 ms	15444 KB	Output is correct
4	Correct	154 ms	17744 KB	Output is correct
5	Correct	144 ms	14924 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	128 ms	16460 KB	Output is correct
2	Correct	192 ms	14676 KB	Output is correct
3	Correct	137 ms	13904 KB	Output is correct
4	Correct	155 ms	17488 KB	Output is correct
5	Correct	151 ms	15444 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	144 ms	14932 KB	Output is correct
2	Correct	151 ms	18956 KB	Output is correct
3	Correct	148 ms	18768 KB	Output is correct
4	Correct	219 ms	21732 KB	Output is correct
5	Correct	184 ms	17940 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	158 ms	19792 KB	Output is correct
2	Correct	231 ms	17600 KB	Output is correct
3	Correct	143 ms	16468 KB	Output is correct
4	Correct	200 ms	21396 KB	Output is correct
5	Correct	173 ms	18512 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	153 ms	17232 KB	Output is correct
2	Correct	179 ms	22352 KB	Output is correct
3	Correct	171 ms	21572 KB	Output is correct
4	Correct	222 ms	24904 KB	Output is correct
5	Correct	195 ms	20308 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	184 ms	22708 KB	Output is correct
2	Correct	256 ms	20560 KB	Output is correct
3	Correct	174 ms	19796 KB	Output is correct
4	Correct	227 ms	24696 KB	Output is correct
5	Correct	240 ms	21404 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	177 ms	20052 KB	Output is correct
2	Correct	202 ms	25304 KB	Output is correct
3	Correct	195 ms	24508 KB	Output is correct
4	Correct	254 ms	28484 KB	Output is correct
5	Correct	230 ms	23892 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	210 ms	26196 KB	Output is correct
2	Correct	281 ms	23376 KB	Output is correct
3	Correct	187 ms	22352 KB	Output is correct
4	Correct	266 ms	28496 KB	Output is correct
5	Correct	223 ms	24396 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	256 ms	24656 KB	Output is correct
2	Correct	249 ms	31572 KB	Output is correct
3	Correct	244 ms	30548 KB	Output is correct
4	Correct	323 ms	35308 KB	Output is correct
5	Correct	296 ms	29520 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	258 ms	32592 KB	Output is correct
2	Correct	343 ms	29264 KB	Output is correct
3	Correct	236 ms	28240 KB	Output is correct
4	Correct	317 ms	35532 KB	Output is correct
5	Correct	290 ms	30964 KB	Output is correct

답안 #1022989

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