답안 #1035101

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1035101	2024-07-26T04:24:56 Z	Uniq0rn	Mobile (BOI12_mobile)	C++14	42 / 100	478 ms	32436 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=1;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	344 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	344 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 #3
4.0 / 4.0

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

Subtask #4
0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	344 KB	Output is correct
2	Incorrect	2 ms	348 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	344 KB	Output is correct
2	Incorrect	2 ms	604 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #6
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	348 KB	Output is correct
2	Incorrect	3 ms	604 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	48 ms	2396 KB	Output is correct
2	Correct	33 ms	2648 KB	Output is correct
3	Correct	24 ms	1880 KB	Output is correct
4	Correct	49 ms	2648 KB	Output is correct
5	Correct	26 ms	1628 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	44 ms	2424 KB	Output is correct
2	Correct	51 ms	2192 KB	Output is correct
3	Correct	51 ms	2652 KB	Output is correct
4	Correct	52 ms	2972 KB	Output is correct
5	Correct	58 ms	3160 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	33 ms	2392 KB	Output is correct
2	Correct	35 ms	2908 KB	Output is correct
3	Correct	38 ms	2648 KB	Output is correct
4	Correct	63 ms	3920 KB	Output is correct
5	Correct	44 ms	2652 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	36 ms	3420 KB	Output is correct
2	Correct	39 ms	3292 KB	Output is correct
3	Correct	37 ms	2904 KB	Output is correct
4	Correct	68 ms	3924 KB	Output is correct
5	Correct	62 ms	3160 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	44 ms	3416 KB	Output is correct
2	Correct	43 ms	3408 KB	Output is correct
3	Correct	47 ms	2908 KB	Output is correct
4	Correct	89 ms	3928 KB	Output is correct
5	Correct	63 ms	3280 KB	Output is correct

Subtask #12
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	200 ms	12372 KB	Output is correct
2	Incorrect	232 ms	15952 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #13
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	220 ms	16468 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	241 ms	14928 KB	Output is correct
2	Correct	265 ms	19028 KB	Output is correct
3	Correct	256 ms	18516 KB	Output is correct
4	Correct	468 ms	21692 KB	Output is correct
5	Correct	377 ms	17780 KB	Output is correct

Subtask #15
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	264 ms	19440 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #16
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	292 ms	17232 KB	Output is correct
2	Correct	311 ms	22096 KB	Output is correct
3	Incorrect	301 ms	21396 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #17
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	326 ms	22904 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #18
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	308 ms	19792 KB	Output is correct
2	Correct	379 ms	25332 KB	Output is correct
3	Incorrect	356 ms	24404 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #19
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	371 ms	26056 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #20
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	393 ms	24656 KB	Output is correct
2	Correct	438 ms	31452 KB	Output is correct
3	Incorrect	478 ms	30432 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #21
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	451 ms	32436 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

답안 #1035101

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