답안 #654441

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
654441	2022-10-31T10:02:20 Z	yhussain11	Mobile (BOI12_mobile)	C++17	100 / 100	407 ms	16000 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	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 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	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 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	1 ms	340 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct
4	Correct	2 ms	340 KB	Output is correct

Subtask #4
4.0 / 4.0

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

Subtask #5
4.0 / 4.0

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

Subtask #6
5.0 / 5.0

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

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	31 ms	1420 KB	Output is correct
2	Correct	23 ms	1492 KB	Output is correct
3	Correct	18 ms	1172 KB	Output is correct
4	Correct	27 ms	1492 KB	Output is correct
5	Correct	18 ms	1108 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	28 ms	1536 KB	Output is correct
2	Correct	24 ms	1428 KB	Output is correct
3	Correct	35 ms	1584 KB	Output is correct
4	Correct	36 ms	1492 KB	Output is correct
5	Correct	40 ms	1620 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	1620 KB	Output is correct
2	Correct	26 ms	1616 KB	Output is correct
3	Correct	23 ms	1748 KB	Output is correct
4	Correct	44 ms	1864 KB	Output is correct
5	Correct	36 ms	1620 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	32 ms	1888 KB	Output is correct
2	Correct	38 ms	1872 KB	Output is correct
3	Correct	30 ms	1876 KB	Output is correct
4	Correct	37 ms	1868 KB	Output is correct
5	Correct	33 ms	1876 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	29 ms	1824 KB	Output is correct
2	Correct	30 ms	1896 KB	Output is correct
3	Correct	26 ms	1880 KB	Output is correct
4	Correct	37 ms	1872 KB	Output is correct
5	Correct	47 ms	1872 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	119 ms	8136 KB	Output is correct
2	Correct	183 ms	8136 KB	Output is correct
3	Correct	142 ms	8084 KB	Output is correct
4	Correct	177 ms	8132 KB	Output is correct
5	Correct	165 ms	8052 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	160 ms	8256 KB	Output is correct
2	Correct	216 ms	8220 KB	Output is correct
3	Correct	131 ms	8108 KB	Output is correct
4	Correct	183 ms	8196 KB	Output is correct
5	Correct	179 ms	8144 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	149 ms	9708 KB	Output is correct
2	Correct	173 ms	9784 KB	Output is correct
3	Correct	166 ms	9588 KB	Output is correct
4	Correct	277 ms	9724 KB	Output is correct
5	Correct	206 ms	9708 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	177 ms	9656 KB	Output is correct
2	Correct	263 ms	9692 KB	Output is correct
3	Correct	160 ms	9764 KB	Output is correct
4	Correct	217 ms	9676 KB	Output is correct
5	Correct	226 ms	9672 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	218 ms	11140 KB	Output is correct
2	Correct	202 ms	11184 KB	Output is correct
3	Correct	204 ms	11268 KB	Output is correct
4	Correct	263 ms	11328 KB	Output is correct
5	Correct	268 ms	11268 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	206 ms	11252 KB	Output is correct
2	Correct	300 ms	11248 KB	Output is correct
3	Correct	191 ms	11236 KB	Output is correct
4	Correct	267 ms	11232 KB	Output is correct
5	Correct	237 ms	11240 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	189 ms	12776 KB	Output is correct
2	Correct	240 ms	12884 KB	Output is correct
3	Correct	263 ms	12844 KB	Output is correct
4	Correct	300 ms	12964 KB	Output is correct
5	Correct	268 ms	12796 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	242 ms	12836 KB	Output is correct
2	Correct	341 ms	12792 KB	Output is correct
3	Correct	249 ms	12836 KB	Output is correct
4	Correct	291 ms	12844 KB	Output is correct
5	Correct	259 ms	12828 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	294 ms	15964 KB	Output is correct
2	Correct	282 ms	16000 KB	Output is correct
3	Correct	297 ms	15852 KB	Output is correct
4	Correct	377 ms	15912 KB	Output is correct
5	Correct	335 ms	15888 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	300 ms	15956 KB	Output is correct
2	Correct	407 ms	15952 KB	Output is correct
3	Correct	298 ms	15904 KB	Output is correct
4	Correct	358 ms	15928 KB	Output is correct
5	Correct	358 ms	15836 KB	Output is correct

답안 #654441

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