답안 #724542

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
724542	2023-04-15T14:01:19 Z	rastervc	Mobile (BOI12_mobile)	C++17	100 / 100	424 ms	35420 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	332 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	324 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	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	324 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	468 KB	Output is correct
3	Correct	3 ms	444 KB	Output is correct
4	Correct	2 ms	476 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	340 KB	Output is correct
2	Correct	2 ms	476 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct
4	Correct	2 ms	468 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	476 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct
4	Correct	2 ms	468 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	2260 KB	Output is correct
2	Correct	22 ms	2484 KB	Output is correct
3	Correct	14 ms	1788 KB	Output is correct
4	Correct	27 ms	2636 KB	Output is correct
5	Correct	14 ms	1480 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	2276 KB	Output is correct
2	Correct	22 ms	2132 KB	Output is correct
3	Correct	27 ms	2612 KB	Output is correct
4	Correct	27 ms	2744 KB	Output is correct
5	Correct	31 ms	3140 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	2344 KB	Output is correct
2	Correct	27 ms	2688 KB	Output is correct
3	Correct	23 ms	2488 KB	Output is correct
4	Correct	40 ms	3784 KB	Output is correct
5	Correct	28 ms	2628 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	29 ms	3364 KB	Output is correct
2	Correct	29 ms	3288 KB	Output is correct
3	Correct	28 ms	2892 KB	Output is correct
4	Correct	43 ms	3732 KB	Output is correct
5	Correct	46 ms	3132 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	31 ms	3488 KB	Output is correct
2	Correct	30 ms	3220 KB	Output is correct
3	Correct	30 ms	2848 KB	Output is correct
4	Correct	38 ms	3788 KB	Output is correct
5	Correct	35 ms	3152 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	123 ms	12448 KB	Output is correct
2	Correct	151 ms	15928 KB	Output is correct
3	Correct	148 ms	15392 KB	Output is correct
4	Correct	244 ms	17740 KB	Output is correct
5	Correct	176 ms	14964 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	147 ms	16412 KB	Output is correct
2	Correct	228 ms	14728 KB	Output is correct
3	Correct	132 ms	13828 KB	Output is correct
4	Correct	179 ms	17496 KB	Output is correct
5	Correct	163 ms	15668 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	140 ms	14796 KB	Output is correct
2	Correct	172 ms	18992 KB	Output is correct
3	Correct	170 ms	18408 KB	Output is correct
4	Correct	229 ms	21620 KB	Output is correct
5	Correct	243 ms	17700 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	194 ms	19680 KB	Output is correct
2	Correct	277 ms	17544 KB	Output is correct
3	Correct	171 ms	16668 KB	Output is correct
4	Correct	238 ms	21436 KB	Output is correct
5	Correct	212 ms	18336 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	204 ms	17328 KB	Output is correct
2	Correct	220 ms	22128 KB	Output is correct
3	Correct	235 ms	21452 KB	Output is correct
4	Correct	291 ms	24828 KB	Output is correct
5	Correct	242 ms	20360 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	242 ms	22808 KB	Output is correct
2	Correct	303 ms	20524 KB	Output is correct
3	Correct	243 ms	19660 KB	Output is correct
4	Correct	308 ms	24600 KB	Output is correct
5	Correct	312 ms	21412 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	197 ms	19776 KB	Output is correct
2	Correct	260 ms	25244 KB	Output is correct
3	Correct	256 ms	24440 KB	Output is correct
4	Correct	324 ms	28464 KB	Output is correct
5	Correct	287 ms	24132 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	248 ms	26040 KB	Output is correct
2	Correct	409 ms	23408 KB	Output is correct
3	Correct	237 ms	22348 KB	Output is correct
4	Correct	344 ms	28328 KB	Output is correct
5	Correct	296 ms	24436 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	240 ms	24604 KB	Output is correct
2	Correct	339 ms	31396 KB	Output is correct
3	Correct	328 ms	30508 KB	Output is correct
4	Correct	407 ms	35108 KB	Output is correct
5	Correct	354 ms	29516 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	299 ms	32492 KB	Output is correct
2	Correct	424 ms	29180 KB	Output is correct
3	Correct	290 ms	28260 KB	Output is correct
4	Correct	369 ms	35420 KB	Output is correct
5	Correct	349 ms	30868 KB	Output is correct

답안 #724542

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