답안 #732535

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
732535	2023-04-29T05:29:48 Z	uy842003	Mobile (BOI12_mobile)	C++17	100 / 100	471 ms	35272 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	212 KB	Output is correct
2	Correct	212 KB	Output is correct
3	Correct	212 KB	Output is correct
4	Correct	212 KB	Output is correct

Subtask #2
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 #3
4.0 / 4.0

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

Subtask #6
5.0 / 5.0

#	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	4 ms	336 KB	Output is correct
4	Correct	2 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	28 ms	1500 KB	Output is correct
2	Correct	23 ms	1532 KB	Output is correct
3	Correct	15 ms	1168 KB	Output is correct
4	Correct	31 ms	1480 KB	Output is correct
5	Correct	22 ms	1112 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	28 ms	1524 KB	Output is correct
2	Correct	23 ms	1364 KB	Output is correct
3	Correct	27 ms	1604 KB	Output is correct
4	Correct	29 ms	1544 KB	Output is correct
5	Correct	31 ms	1656 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	1700 KB	Output is correct
2	Correct	26 ms	1544 KB	Output is correct
3	Correct	27 ms	1644 KB	Output is correct
4	Correct	54 ms	1860 KB	Output is correct
5	Correct	37 ms	1700 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	68 ms	1812 KB	Output is correct
2	Correct	51 ms	1800 KB	Output is correct
3	Correct	32 ms	1876 KB	Output is correct
4	Correct	40 ms	1872 KB	Output is correct
5	Correct	32 ms	1876 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	32 ms	1864 KB	Output is correct
2	Correct	28 ms	1892 KB	Output is correct
3	Correct	28 ms	1872 KB	Output is correct
4	Correct	40 ms	1876 KB	Output is correct
5	Correct	32 ms	1876 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	125 ms	8140 KB	Output is correct
2	Correct	151 ms	8136 KB	Output is correct
3	Correct	161 ms	8136 KB	Output is correct
4	Correct	181 ms	8140 KB	Output is correct
5	Correct	174 ms	8132 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	148 ms	8128 KB	Output is correct
2	Correct	232 ms	8104 KB	Output is correct
3	Correct	147 ms	8224 KB	Output is correct
4	Correct	176 ms	8132 KB	Output is correct
5	Correct	183 ms	8140 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	162 ms	9676 KB	Output is correct
2	Correct	195 ms	9704 KB	Output is correct
3	Correct	191 ms	9700 KB	Output is correct
4	Correct	245 ms	9704 KB	Output is correct
5	Correct	279 ms	9704 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	207 ms	9732 KB	Output is correct
2	Correct	309 ms	9700 KB	Output is correct
3	Correct	200 ms	9744 KB	Output is correct
4	Correct	241 ms	9804 KB	Output is correct
5	Correct	205 ms	9588 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	173 ms	11212 KB	Output is correct
2	Correct	241 ms	11268 KB	Output is correct
3	Correct	207 ms	11204 KB	Output is correct
4	Correct	300 ms	11268 KB	Output is correct
5	Correct	236 ms	11268 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	228 ms	11264 KB	Output is correct
2	Correct	292 ms	11256 KB	Output is correct
3	Correct	205 ms	11316 KB	Output is correct
4	Correct	431 ms	11240 KB	Output is correct
5	Correct	239 ms	11180 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	190 ms	12836 KB	Output is correct
2	Correct	234 ms	12764 KB	Output is correct
3	Correct	236 ms	12848 KB	Output is correct
4	Correct	304 ms	12780 KB	Output is correct
5	Correct	335 ms	24088 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	250 ms	12836 KB	Output is correct
2	Correct	328 ms	12812 KB	Output is correct
3	Correct	282 ms	12748 KB	Output is correct
4	Correct	301 ms	12832 KB	Output is correct
5	Correct	302 ms	24404 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	342 ms	15956 KB	Output is correct
2	Correct	375 ms	15948 KB	Output is correct
3	Correct	356 ms	30512 KB	Output is correct
4	Correct	471 ms	35132 KB	Output is correct
5	Correct	358 ms	29520 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	324 ms	15956 KB	Output is correct
2	Correct	428 ms	29148 KB	Output is correct
3	Correct	305 ms	28252 KB	Output is correct
4	Correct	408 ms	35272 KB	Output is correct
5	Correct	429 ms	30668 KB	Output is correct

답안 #732535

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