답안 #974146

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
974146	2024-05-02T23:15:54 Z	AksLolCoding	Mobile (BOI12_mobile)	C++17	100 / 100	326 ms	29400 KB

mobile

#include <bits/stdc++.h>
using namespace std;

#define x first
#define y second
using ll = long long;

pair<ll, ll> p[1000000];

int main() {
	cin.tie(0)->sync_with_stdio(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;
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	344 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	344 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	348 KB	Output is correct
3	Correct	1 ms	600 KB	Output is correct
4	Correct	2 ms	348 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	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	2 ms	348 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	600 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	344 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	24 ms	2652 KB	Output is correct
2	Correct	18 ms	2648 KB	Output is correct
3	Correct	13 ms	2648 KB	Output is correct
4	Correct	23 ms	2652 KB	Output is correct
5	Correct	14 ms	2696 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	2652 KB	Output is correct
2	Correct	20 ms	2696 KB	Output is correct
3	Correct	25 ms	2692 KB	Output is correct
4	Correct	24 ms	2652 KB	Output is correct
5	Correct	27 ms	2652 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	2648 KB	Output is correct
2	Correct	20 ms	2684 KB	Output is correct
3	Correct	20 ms	2648 KB	Output is correct
4	Correct	38 ms	2652 KB	Output is correct
5	Correct	27 ms	2648 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	2904 KB	Output is correct
2	Correct	23 ms	2652 KB	Output is correct
3	Correct	23 ms	2648 KB	Output is correct
4	Correct	32 ms	2648 KB	Output is correct
5	Correct	27 ms	2652 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	27 ms	2652 KB	Output is correct
2	Correct	29 ms	2652 KB	Output is correct
3	Correct	23 ms	2648 KB	Output is correct
4	Correct	37 ms	2676 KB	Output is correct
5	Correct	29 ms	2648 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	114 ms	8784 KB	Output is correct
2	Correct	122 ms	8828 KB	Output is correct
3	Correct	119 ms	8828 KB	Output is correct
4	Correct	157 ms	8824 KB	Output is correct
5	Correct	151 ms	8784 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	123 ms	8576 KB	Output is correct
2	Correct	183 ms	9044 KB	Output is correct
3	Correct	126 ms	8784 KB	Output is correct
4	Correct	151 ms	8784 KB	Output is correct
5	Correct	140 ms	8788 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	143 ms	10884 KB	Output is correct
2	Correct	142 ms	10888 KB	Output is correct
3	Correct	142 ms	10876 KB	Output is correct
4	Correct	202 ms	10880 KB	Output is correct
5	Correct	169 ms	10876 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	144 ms	10876 KB	Output is correct
2	Correct	223 ms	10836 KB	Output is correct
3	Correct	135 ms	10836 KB	Output is correct
4	Correct	199 ms	10880 KB	Output is correct
5	Correct	166 ms	10884 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	145 ms	12884 KB	Output is correct
2	Correct	170 ms	12888 KB	Output is correct
3	Correct	162 ms	12884 KB	Output is correct
4	Correct	216 ms	12880 KB	Output is correct
5	Correct	191 ms	12916 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	170 ms	12932 KB	Output is correct
2	Correct	238 ms	12880 KB	Output is correct
3	Correct	162 ms	12880 KB	Output is correct
4	Correct	215 ms	12912 KB	Output is correct
5	Correct	226 ms	12924 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	164 ms	14984 KB	Output is correct
2	Correct	188 ms	14972 KB	Output is correct
3	Correct	187 ms	15184 KB	Output is correct
4	Correct	283 ms	15184 KB	Output is correct
5	Correct	223 ms	14980 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	191 ms	14980 KB	Output is correct
2	Correct	274 ms	14980 KB	Output is correct
3	Correct	181 ms	14932 KB	Output is correct
4	Correct	261 ms	14980 KB	Output is correct
5	Correct	223 ms	14980 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	224 ms	16008 KB	Output is correct
2	Correct	249 ms	16088 KB	Output is correct
3	Correct	260 ms	16088 KB	Output is correct
4	Correct	316 ms	15956 KB	Output is correct
5	Correct	290 ms	28600 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	240 ms	15988 KB	Output is correct
2	Correct	326 ms	15956 KB	Output is correct
3	Correct	236 ms	16088 KB	Output is correct
4	Correct	310 ms	16208 KB	Output is correct
5	Correct	286 ms	29400 KB	Output is correct

답안 #974146

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