답안 #1066374

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1066374	2024-08-19T19:24:21 Z	JohnnyVenturas	Mobile (BOI12_mobile)	C++17	100 / 100	358 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	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	메모리	Grader output
1	Correct	600 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 #3
4.0 / 4.0

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

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	544 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	28 ms	2896 KB	Output is correct
2	Correct	18 ms	2648 KB	Output is correct
3	Correct	15 ms	3164 KB	Output is correct
4	Correct	25 ms	3680 KB	Output is correct
5	Correct	12 ms	2904 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	18 ms	2652 KB	Output is correct
2	Correct	19 ms	2652 KB	Output is correct
3	Correct	22 ms	2904 KB	Output is correct
4	Correct	29 ms	3932 KB	Output is correct
5	Correct	26 ms	4092 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	2692 KB	Output is correct
2	Correct	19 ms	2700 KB	Output is correct
3	Correct	20 ms	3652 KB	Output is correct
4	Correct	32 ms	4444 KB	Output is correct
5	Correct	25 ms	3420 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	2648 KB	Output is correct
2	Correct	23 ms	2700 KB	Output is correct
3	Correct	23 ms	3724 KB	Output is correct
4	Correct	32 ms	4444 KB	Output is correct
5	Correct	27 ms	3932 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	2648 KB	Output is correct
2	Correct	23 ms	2696 KB	Output is correct
3	Correct	22 ms	3676 KB	Output is correct
4	Correct	31 ms	4444 KB	Output is correct
5	Correct	27 ms	3948 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	100 ms	8792 KB	Output is correct
2	Correct	117 ms	8828 KB	Output is correct
3	Correct	130 ms	16000 KB	Output is correct
4	Correct	149 ms	18288 KB	Output is correct
5	Correct	135 ms	15444 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	141 ms	8788 KB	Output is correct
2	Correct	184 ms	15444 KB	Output is correct
3	Correct	114 ms	14448 KB	Output is correct
4	Correct	163 ms	18168 KB	Output is correct
5	Correct	136 ms	16116 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	123 ms	10880 KB	Output is correct
2	Correct	138 ms	10836 KB	Output is correct
3	Correct	148 ms	19448 KB	Output is correct
4	Correct	189 ms	22648 KB	Output is correct
5	Correct	162 ms	18804 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	147 ms	10836 KB	Output is correct
2	Correct	219 ms	18768 KB	Output is correct
3	Correct	131 ms	17524 KB	Output is correct
4	Correct	230 ms	22632 KB	Output is correct
5	Correct	169 ms	19440 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	142 ms	12684 KB	Output is correct
2	Correct	160 ms	13140 KB	Output is correct
3	Correct	164 ms	22864 KB	Output is correct
4	Correct	210 ms	24936 KB	Output is correct
5	Correct	188 ms	20308 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	184 ms	11380 KB	Output is correct
2	Correct	248 ms	20564 KB	Output is correct
3	Correct	161 ms	19788 KB	Output is correct
4	Correct	217 ms	24656 KB	Output is correct
5	Correct	192 ms	21360 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	167 ms	12880 KB	Output is correct
2	Correct	195 ms	12884 KB	Output is correct
3	Correct	188 ms	24408 KB	Output is correct
4	Correct	242 ms	28556 KB	Output is correct
5	Correct	218 ms	24060 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	188 ms	12884 KB	Output is correct
2	Correct	280 ms	25428 KB	Output is correct
3	Correct	189 ms	24400 KB	Output is correct
4	Correct	258 ms	30316 KB	Output is correct
5	Correct	253 ms	26356 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	216 ms	15956 KB	Output is correct
2	Correct	235 ms	15996 KB	Output is correct
3	Correct	236 ms	30808 KB	Output is correct
4	Correct	309 ms	35340 KB	Output is correct
5	Correct	284 ms	29512 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	235 ms	15952 KB	Output is correct
2	Correct	358 ms	29268 KB	Output is correct
3	Correct	233 ms	28244 KB	Output is correct
4	Correct	308 ms	35408 KB	Output is correct
5	Correct	283 ms	30840 KB	Output is correct

답안 #1066374

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