답안 #1035104

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1035104	2024-07-26T04:28:31 Z	Uniq0rn	Mobile (BOI12_mobile)	C++14	100 / 100	706 ms	35412 KB

mobile

#include <bits/stdc++.h>
using namespace std;
 
#define ld long double 
#define ll long long int
#define pi pair<int,int>
#define sz(x) (int)x.size()
#define all(x) begin(x),end(x)
 
int main()
{
    cin.tie(0)->sync_with_stdio(0);
    int n;
    double L;
    cin >> n >> L;
    vector<pair<double,double>> a(n);
    for(int i=0;i<n;i++){
        cin >> a[i].first >> a[i].second;
    }
    sort(all(a));
    auto len = [&](double a,double b){
        return sqrt(a*a - b*b);
    };
    double l = 0,r = 2e9;
    while(r - l > 0.000001){
        double mid = (l + r) / 2.0;
        double mn = 0,mx = 0;
        for(int i=0;i<n;i++){
            double le = a[i].first - len(mid,a[i].second),ri = a[i].first + len(mid,a[i].second);
            if(le <= mx){
                mx = max(mx,ri);
                mn = min(mn,le);
            }
        }
        if(mn <= 0 && mx >= L){
            r = mid;
        }
        else{
            l = mid;
        }
    }
    cout << setprecision(6) << fixed << r;
    return 0;
}

Subtask #1
4.0 / 4.0

#	결과	메모리	Grader output
1	Correct	348 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 #2
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	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct

Subtask #3
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	492 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	348 KB	Output is correct
2	Correct	2 ms	348 KB	Output is correct
3	Correct	3 ms	344 KB	Output is correct
4	Correct	4 ms	604 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	344 KB	Output is correct
2	Correct	2 ms	348 KB	Output is correct
3	Correct	3 ms	348 KB	Output is correct
4	Correct	4 ms	608 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	344 KB	Output is correct
2	Correct	3 ms	348 KB	Output is correct
3	Correct	3 ms	344 KB	Output is correct
4	Correct	4 ms	604 KB	Output is correct
5	Correct	3 ms	472 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	49 ms	1628 KB	Output is correct
2	Correct	33 ms	1624 KB	Output is correct
3	Correct	25 ms	1112 KB	Output is correct
4	Correct	55 ms	1628 KB	Output is correct
5	Correct	27 ms	1112 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	1628 KB	Output is correct
2	Correct	43 ms	1372 KB	Output is correct
3	Correct	51 ms	1624 KB	Output is correct
4	Correct	52 ms	1628 KB	Output is correct
5	Correct	60 ms	1628 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	35 ms	1624 KB	Output is correct
2	Correct	39 ms	1628 KB	Output is correct
3	Correct	38 ms	1628 KB	Output is correct
4	Correct	73 ms	1884 KB	Output is correct
5	Correct	52 ms	1624 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	45 ms	1884 KB	Output is correct
2	Correct	42 ms	1880 KB	Output is correct
3	Correct	44 ms	1884 KB	Output is correct
4	Correct	66 ms	1884 KB	Output is correct
5	Correct	62 ms	1880 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	1884 KB	Output is correct
2	Correct	43 ms	1884 KB	Output is correct
3	Correct	45 ms	1884 KB	Output is correct
4	Correct	71 ms	1880 KB	Output is correct
5	Correct	62 ms	1880 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	193 ms	8284 KB	Output is correct
2	Correct	218 ms	8280 KB	Output is correct
3	Correct	207 ms	15428 KB	Output is correct
4	Correct	358 ms	17920 KB	Output is correct
5	Correct	314 ms	14932 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	229 ms	8280 KB	Output is correct
2	Correct	365 ms	14676 KB	Output is correct
3	Correct	228 ms	13908 KB	Output is correct
4	Correct	341 ms	17480 KB	Output is correct
5	Correct	318 ms	15444 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	235 ms	9816 KB	Output is correct
2	Correct	263 ms	9816 KB	Output is correct
3	Correct	269 ms	9816 KB	Output is correct
4	Correct	434 ms	9820 KB	Output is correct
5	Correct	381 ms	9816 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	277 ms	9820 KB	Output is correct
2	Correct	426 ms	17748 KB	Output is correct
3	Correct	279 ms	16468 KB	Output is correct
4	Correct	440 ms	21584 KB	Output is correct
5	Correct	387 ms	18536 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	286 ms	11356 KB	Output is correct
2	Correct	300 ms	11356 KB	Output is correct
3	Correct	305 ms	11352 KB	Output is correct
4	Correct	480 ms	24912 KB	Output is correct
5	Correct	436 ms	20304 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	309 ms	11356 KB	Output is correct
2	Correct	482 ms	20620 KB	Output is correct
3	Correct	325 ms	19724 KB	Output is correct
4	Correct	509 ms	24660 KB	Output is correct
5	Correct	468 ms	21380 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	314 ms	12892 KB	Output is correct
2	Correct	366 ms	12892 KB	Output is correct
3	Correct	338 ms	12892 KB	Output is correct
4	Correct	591 ms	28580 KB	Output is correct
5	Correct	509 ms	23980 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	360 ms	12888 KB	Output is correct
2	Correct	562 ms	23376 KB	Output is correct
3	Correct	364 ms	22468 KB	Output is correct
4	Correct	575 ms	28244 KB	Output is correct
5	Correct	537 ms	24404 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	396 ms	15964 KB	Output is correct
2	Correct	452 ms	15960 KB	Output is correct
3	Correct	423 ms	15960 KB	Output is correct
4	Correct	683 ms	35152 KB	Output is correct
5	Correct	644 ms	29668 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	459 ms	15960 KB	Output is correct
2	Correct	676 ms	29164 KB	Output is correct
3	Correct	461 ms	28256 KB	Output is correct
4	Correct	706 ms	35412 KB	Output is correct
5	Correct	672 ms	30800 KB	Output is correct

답안 #1035104

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