답안 #1012080

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1012080	2024-07-01T15:35:15 Z	tkvinhtruongquang	Mobile (BOI12_mobile)	C++14	100 / 100	323 ms	35408 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	348 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	460 KB	Output is correct
3	Correct	348 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	1 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	1 ms	348 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	476 KB	Output is correct
2	Correct	2 ms	600 KB	Output is correct
3	Correct	1 ms	348 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	472 KB	Output is correct
2	Correct	1 ms	604 KB	Output is correct
3	Correct	2 ms	600 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	2 ms	604 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	2 ms	600 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	28 ms	2420 KB	Output is correct
2	Correct	18 ms	2652 KB	Output is correct
3	Correct	12 ms	1884 KB	Output is correct
4	Correct	27 ms	2908 KB	Output is correct
5	Correct	12 ms	1544 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	2204 KB	Output is correct
2	Correct	20 ms	2140 KB	Output is correct
3	Correct	22 ms	2904 KB	Output is correct
4	Correct	24 ms	2824 KB	Output is correct
5	Correct	26 ms	3160 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	18 ms	2396 KB	Output is correct
2	Correct	23 ms	2868 KB	Output is correct
3	Correct	20 ms	2656 KB	Output is correct
4	Correct	33 ms	3932 KB	Output is correct
5	Correct	23 ms	2652 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	24 ms	3416 KB	Output is correct
3	Correct	22 ms	2908 KB	Output is correct
4	Correct	31 ms	3928 KB	Output is correct
5	Correct	27 ms	3164 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	3416 KB	Output is correct
2	Correct	24 ms	3420 KB	Output is correct
3	Correct	26 ms	2904 KB	Output is correct
4	Correct	31 ms	3928 KB	Output is correct
5	Correct	27 ms	3164 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	109 ms	12628 KB	Output is correct
2	Correct	132 ms	15884 KB	Output is correct
3	Correct	127 ms	15440 KB	Output is correct
4	Correct	146 ms	17744 KB	Output is correct
5	Correct	138 ms	14864 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	124 ms	16456 KB	Output is correct
2	Correct	186 ms	14696 KB	Output is correct
3	Correct	113 ms	13808 KB	Output is correct
4	Correct	151 ms	17492 KB	Output is correct
5	Correct	141 ms	15440 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	134 ms	15168 KB	Output is correct
2	Correct	143 ms	19024 KB	Output is correct
3	Correct	154 ms	18496 KB	Output is correct
4	Correct	182 ms	21572 KB	Output is correct
5	Correct	162 ms	17752 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	145 ms	19596 KB	Output is correct
2	Correct	217 ms	17744 KB	Output is correct
3	Correct	134 ms	16464 KB	Output is correct
4	Correct	179 ms	21472 KB	Output is correct
5	Correct	204 ms	18516 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	146 ms	17280 KB	Output is correct
2	Correct	170 ms	22096 KB	Output is correct
3	Correct	164 ms	21332 KB	Output is correct
4	Correct	218 ms	24912 KB	Output is correct
5	Correct	199 ms	20216 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	168 ms	22868 KB	Output is correct
2	Correct	243 ms	20464 KB	Output is correct
3	Correct	166 ms	19540 KB	Output is correct
4	Correct	204 ms	24580 KB	Output is correct
5	Correct	193 ms	21328 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	169 ms	19792 KB	Output is correct
2	Correct	204 ms	25564 KB	Output is correct
3	Correct	187 ms	24408 KB	Output is correct
4	Correct	244 ms	28500 KB	Output is correct
5	Correct	223 ms	23892 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	192 ms	25936 KB	Output is correct
2	Correct	277 ms	23524 KB	Output is correct
3	Correct	178 ms	22440 KB	Output is correct
4	Correct	243 ms	28196 KB	Output is correct
5	Correct	226 ms	24380 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	206 ms	24660 KB	Output is correct
2	Correct	262 ms	31568 KB	Output is correct
3	Correct	257 ms	30492 KB	Output is correct
4	Correct	292 ms	35408 KB	Output is correct
5	Correct	280 ms	29548 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	242 ms	32592 KB	Output is correct
2	Correct	323 ms	29268 KB	Output is correct
3	Correct	224 ms	28240 KB	Output is correct
4	Correct	302 ms	35356 KB	Output is correct
5	Correct	268 ms	30760 KB	Output is correct

답안 #1012080

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