답안 #467892

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
467892	2021-08-25T13:42:18 Z	kaxzert	Mobile (BOI12_mobile)	C++17	100 / 100	547 ms	35128 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	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	0 ms	316 KB	Output is correct

Subtask #2
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	332 KB	Output is correct
2	Correct	2 ms	332 KB	Output is correct
3	Correct	2 ms	332 KB	Output is correct
4	Correct	2 ms	336 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	332 KB	Output is correct
2	Correct	3 ms	460 KB	Output is correct
3	Correct	3 ms	332 KB	Output is correct
4	Correct	3 ms	460 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	332 KB	Output is correct
2	Correct	3 ms	460 KB	Output is correct
3	Correct	2 ms	332 KB	Output is correct
4	Correct	3 ms	460 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	332 KB	Output is correct
2	Correct	3 ms	332 KB	Output is correct
3	Correct	2 ms	332 KB	Output is correct
4	Correct	3 ms	332 KB	Output is correct
5	Correct	3 ms	432 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	37 ms	1484 KB	Output is correct
2	Correct	31 ms	2484 KB	Output is correct
3	Correct	22 ms	1740 KB	Output is correct
4	Correct	38 ms	2652 KB	Output is correct
5	Correct	22 ms	1376 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	33 ms	1484 KB	Output is correct
2	Correct	32 ms	2232 KB	Output is correct
3	Correct	38 ms	2596 KB	Output is correct
4	Correct	38 ms	2752 KB	Output is correct
5	Correct	46 ms	3108 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	32 ms	1732 KB	Output is correct
2	Correct	35 ms	1516 KB	Output is correct
3	Correct	35 ms	1552 KB	Output is correct
4	Correct	54 ms	1836 KB	Output is correct
5	Correct	40 ms	2512 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	41 ms	1868 KB	Output is correct
2	Correct	40 ms	1868 KB	Output is correct
3	Correct	39 ms	1860 KB	Output is correct
4	Correct	52 ms	1868 KB	Output is correct
5	Correct	47 ms	3084 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	41 ms	1832 KB	Output is correct
2	Correct	42 ms	1764 KB	Output is correct
3	Correct	40 ms	1864 KB	Output is correct
4	Correct	53 ms	1864 KB	Output is correct
5	Correct	46 ms	3136 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	212 ms	11508 KB	Output is correct
2	Correct	209 ms	15836 KB	Output is correct
3	Correct	202 ms	15340 KB	Output is correct
4	Correct	260 ms	17684 KB	Output is correct
5	Correct	235 ms	15044 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	216 ms	14420 KB	Output is correct
2	Correct	290 ms	14768 KB	Output is correct
3	Correct	198 ms	13888 KB	Output is correct
4	Correct	259 ms	17368 KB	Output is correct
5	Correct	255 ms	15416 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	220 ms	13856 KB	Output is correct
2	Correct	253 ms	18964 KB	Output is correct
3	Correct	249 ms	18384 KB	Output is correct
4	Correct	328 ms	21572 KB	Output is correct
5	Correct	287 ms	17620 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	259 ms	17648 KB	Output is correct
2	Correct	329 ms	17620 KB	Output is correct
3	Correct	259 ms	16528 KB	Output is correct
4	Correct	318 ms	21504 KB	Output is correct
5	Correct	285 ms	18364 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	257 ms	16432 KB	Output is correct
2	Correct	297 ms	22088 KB	Output is correct
3	Correct	297 ms	21404 KB	Output is correct
4	Correct	373 ms	24780 KB	Output is correct
5	Correct	326 ms	20292 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	301 ms	21296 KB	Output is correct
2	Correct	393 ms	20504 KB	Output is correct
3	Correct	280 ms	19688 KB	Output is correct
4	Correct	364 ms	24524 KB	Output is correct
5	Correct	336 ms	21476 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	308 ms	19388 KB	Output is correct
2	Correct	372 ms	25140 KB	Output is correct
3	Correct	348 ms	24420 KB	Output is correct
4	Correct	440 ms	28452 KB	Output is correct
5	Correct	484 ms	24116 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	337 ms	24908 KB	Output is correct
2	Correct	454 ms	23364 KB	Output is correct
3	Correct	347 ms	22328 KB	Output is correct
4	Correct	452 ms	28336 KB	Output is correct
5	Correct	414 ms	24396 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	387 ms	24632 KB	Output is correct
2	Correct	430 ms	31524 KB	Output is correct
3	Correct	438 ms	30380 KB	Output is correct
4	Correct	538 ms	35128 KB	Output is correct
5	Correct	503 ms	29492 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	419 ms	31936 KB	Output is correct
2	Correct	534 ms	29188 KB	Output is correct
3	Correct	419 ms	28220 KB	Output is correct
4	Correct	547 ms	17936 KB	Output is correct
5	Correct	517 ms	30680 KB	Output is correct

답안 #467892

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