Submission #702397

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
702397	2023-02-23T23:42:29 Z	leastmerryfish	Mobile (BOI12_mobile)	C++17	100 / 100	392 ms	35252 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;
}

Subtask #1
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	328 KB	Output is correct

Subtask #2
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	328 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	212 KB	Output is correct

Subtask #3
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 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

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	340 KB	Output is correct
2	Correct	2 ms	468 KB	Output is correct
3	Correct	2 ms	344 KB	Output is correct
4	Correct	3 ms	412 KB	Output is correct

Subtask #5
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	340 KB	Output is correct
2	Correct	2 ms	468 KB	Output is correct
3	Correct	2 ms	344 KB	Output is correct
4	Correct	2 ms	468 KB	Output is correct

Subtask #6
5.0 / 5.0

#	Verdict	Execution time	Memory	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	468 KB	Output is correct
5	Correct	2 ms	340 KB	Output is correct

Subtask #7
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	2276 KB	Output is correct
2	Correct	21 ms	2540 KB	Output is correct
3	Correct	14 ms	1732 KB	Output is correct
4	Correct	26 ms	2612 KB	Output is correct
5	Correct	13 ms	1492 KB	Output is correct

Subtask #8
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	22 ms	2260 KB	Output is correct
2	Correct	21 ms	2132 KB	Output is correct
3	Correct	25 ms	2596 KB	Output is correct
4	Correct	27 ms	2696 KB	Output is correct
5	Correct	33 ms	3044 KB	Output is correct

Subtask #9
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	20 ms	2268 KB	Output is correct
2	Correct	22 ms	2644 KB	Output is correct
3	Correct	25 ms	2600 KB	Output is correct
4	Correct	37 ms	3788 KB	Output is correct
5	Correct	26 ms	2564 KB	Output is correct

Subtask #10
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	29 ms	3404 KB	Output is correct
2	Correct	28 ms	3276 KB	Output is correct
3	Correct	26 ms	2900 KB	Output is correct
4	Correct	38 ms	3768 KB	Output is correct
5	Correct	30 ms	3216 KB	Output is correct

Subtask #11
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	28 ms	3276 KB	Output is correct
2	Correct	29 ms	3276 KB	Output is correct
3	Correct	27 ms	2884 KB	Output is correct
4	Correct	37 ms	3764 KB	Output is correct
5	Correct	31 ms	3144 KB	Output is correct

Subtask #12
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	120 ms	12356 KB	Output is correct
2	Correct	144 ms	15868 KB	Output is correct
3	Correct	138 ms	15404 KB	Output is correct
4	Correct	188 ms	17716 KB	Output is correct
5	Correct	165 ms	14968 KB	Output is correct

Subtask #13
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	156 ms	16312 KB	Output is correct
2	Correct	211 ms	14752 KB	Output is correct
3	Correct	135 ms	13832 KB	Output is correct
4	Correct	183 ms	17372 KB	Output is correct
5	Correct	161 ms	15420 KB	Output is correct

Subtask #14
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	146 ms	14932 KB	Output is correct
2	Correct	185 ms	19092 KB	Output is correct
3	Correct	168 ms	18376 KB	Output is correct
4	Correct	235 ms	21576 KB	Output is correct
5	Correct	191 ms	17596 KB	Output is correct

Subtask #15
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	179 ms	19580 KB	Output is correct
2	Correct	245 ms	17624 KB	Output is correct
3	Correct	152 ms	16552 KB	Output is correct
4	Correct	217 ms	21388 KB	Output is correct
5	Correct	192 ms	18400 KB	Output is correct

Subtask #16
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	160 ms	17252 KB	Output is correct
2	Correct	202 ms	22124 KB	Output is correct
3	Correct	198 ms	21380 KB	Output is correct
4	Correct	258 ms	24924 KB	Output is correct
5	Correct	216 ms	20308 KB	Output is correct

Subtask #17
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	200 ms	22780 KB	Output is correct
2	Correct	282 ms	20520 KB	Output is correct
3	Correct	194 ms	19560 KB	Output is correct
4	Correct	260 ms	24764 KB	Output is correct
5	Correct	227 ms	21328 KB	Output is correct

Subtask #18
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	188 ms	19788 KB	Output is correct
2	Correct	227 ms	25228 KB	Output is correct
3	Correct	229 ms	24660 KB	Output is correct
4	Correct	286 ms	28504 KB	Output is correct
5	Correct	256 ms	24008 KB	Output is correct

Subtask #19
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	226 ms	26196 KB	Output is correct
2	Correct	312 ms	23500 KB	Output is correct
3	Correct	233 ms	22292 KB	Output is correct
4	Correct	295 ms	28300 KB	Output is correct
5	Correct	269 ms	24436 KB	Output is correct

Subtask #20
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	239 ms	24664 KB	Output is correct
2	Correct	283 ms	31508 KB	Output is correct
3	Correct	284 ms	30528 KB	Output is correct
4	Correct	359 ms	35180 KB	Output is correct
5	Correct	322 ms	29428 KB	Output is correct

Subtask #21
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	280 ms	32496 KB	Output is correct
2	Correct	392 ms	29132 KB	Output is correct
3	Correct	274 ms	28168 KB	Output is correct
4	Correct	374 ms	35252 KB	Output is correct
5	Correct	335 ms	30668 KB	Output is correct

Submission #702397

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