답안 #970784

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
970784	2024-04-27T08:56:48 Z	hihihihaw	Mobile (BOI12_mobile)	C++17	100 / 100	340 ms	35456 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	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 #2
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 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	1 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	1 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 #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	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
5	Correct	2 ms	348 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	2652 KB	Output is correct
2	Correct	19 ms	2700 KB	Output is correct
3	Correct	18 ms	2652 KB	Output is correct
4	Correct	23 ms	2648 KB	Output is correct
5	Correct	12 ms	2652 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	2652 KB	Output is correct
2	Correct	20 ms	2648 KB	Output is correct
3	Correct	23 ms	2688 KB	Output is correct
4	Correct	24 ms	2908 KB	Output is correct
5	Correct	27 ms	2852 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	25 ms	2652 KB	Output is correct
2	Correct	20 ms	2652 KB	Output is correct
3	Correct	20 ms	2652 KB	Output is correct
4	Correct	32 ms	2900 KB	Output is correct
5	Correct	23 ms	2692 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	2652 KB	Output is correct
2	Correct	25 ms	2652 KB	Output is correct
3	Correct	23 ms	2652 KB	Output is correct
4	Correct	33 ms	2676 KB	Output is correct
5	Correct	29 ms	2648 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	2648 KB	Output is correct
2	Correct	24 ms	2652 KB	Output is correct
3	Correct	23 ms	2652 KB	Output is correct
4	Correct	32 ms	2652 KB	Output is correct
5	Correct	28 ms	2652 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	111 ms	9296 KB	Output is correct
2	Correct	120 ms	8784 KB	Output is correct
3	Correct	118 ms	8828 KB	Output is correct
4	Correct	156 ms	8784 KB	Output is correct
5	Correct	141 ms	8784 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	122 ms	8788 KB	Output is correct
2	Correct	180 ms	8824 KB	Output is correct
3	Correct	121 ms	8844 KB	Output is correct
4	Correct	156 ms	8576 KB	Output is correct
5	Correct	153 ms	8788 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	124 ms	10832 KB	Output is correct
2	Correct	144 ms	10832 KB	Output is correct
3	Correct	142 ms	10836 KB	Output is correct
4	Correct	191 ms	10876 KB	Output is correct
5	Correct	184 ms	10868 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	146 ms	10872 KB	Output is correct
2	Correct	229 ms	10876 KB	Output is correct
3	Correct	139 ms	10832 KB	Output is correct
4	Correct	191 ms	10876 KB	Output is correct
5	Correct	170 ms	10880 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	148 ms	12932 KB	Output is correct
2	Correct	167 ms	12928 KB	Output is correct
3	Correct	166 ms	12920 KB	Output is correct
4	Correct	227 ms	12928 KB	Output is correct
5	Correct	191 ms	12936 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	171 ms	13172 KB	Output is correct
2	Correct	248 ms	12880 KB	Output is correct
3	Correct	160 ms	12936 KB	Output is correct
4	Correct	231 ms	12936 KB	Output is correct
5	Correct	197 ms	12932 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	166 ms	14932 KB	Output is correct
2	Correct	198 ms	14936 KB	Output is correct
3	Correct	193 ms	14980 KB	Output is correct
4	Correct	249 ms	14980 KB	Output is correct
5	Correct	234 ms	15220 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	192 ms	14964 KB	Output is correct
2	Correct	273 ms	14984 KB	Output is correct
3	Correct	182 ms	14980 KB	Output is correct
4	Correct	252 ms	14984 KB	Output is correct
5	Correct	227 ms	15236 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	205 ms	15952 KB	Output is correct
2	Correct	236 ms	16092 KB	Output is correct
3	Correct	242 ms	31312 KB	Output is correct
4	Correct	316 ms	35152 KB	Output is correct
5	Correct	290 ms	29780 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	248 ms	15956 KB	Output is correct
2	Correct	340 ms	29316 KB	Output is correct
3	Correct	235 ms	28244 KB	Output is correct
4	Correct	319 ms	35456 KB	Output is correct
5	Correct	293 ms	30868 KB	Output is correct

답안 #970784

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