답안 #1035103

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1035103	2024-07-26T04:26:56 Z	Uniq0rn	Mobile (BOI12_mobile)	C++14	42 / 100	433 ms	15964 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 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);
            }
        }
        if(mx >= L){
            r = mid;
        }
        else{
            l = mid;
        }
    }
    cout << setprecision(6) << fixed << l;
    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	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	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	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	3 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	348 KB	Output is correct
2	Incorrect	2 ms	348 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	2 ms	348 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	1624 KB	Output is correct
2	Correct	32 ms	1624 KB	Output is correct
3	Correct	23 ms	1112 KB	Output is correct
4	Correct	60 ms	1628 KB	Output is correct
5	Correct	25 ms	1116 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	41 ms	1624 KB	Output is correct
3	Correct	48 ms	1628 KB	Output is correct
4	Correct	50 ms	1624 KB	Output is correct
5	Correct	57 ms	1624 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	32 ms	1628 KB	Output is correct
2	Correct	35 ms	1624 KB	Output is correct
3	Correct	37 ms	1628 KB	Output is correct
4	Correct	69 ms	1884 KB	Output is correct
5	Correct	51 ms	1624 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	1884 KB	Output is correct
2	Correct	42 ms	1884 KB	Output is correct
3	Correct	50 ms	1884 KB	Output is correct
4	Correct	71 ms	1880 KB	Output is correct
5	Correct	59 ms	1884 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	1880 KB	Output is correct
2	Correct	44 ms	1884 KB	Output is correct
3	Correct	51 ms	1884 KB	Output is correct
4	Correct	66 ms	1880 KB	Output is correct
5	Correct	57 ms	1880 KB	Output is correct

Subtask #12
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	174 ms	8280 KB	Output is correct
2	Incorrect	195 ms	8284 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #13
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	200 ms	8284 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	228 ms	9816 KB	Output is correct
2	Correct	250 ms	9816 KB	Output is correct
3	Correct	245 ms	9820 KB	Output is correct
4	Correct	411 ms	9820 KB	Output is correct
5	Correct	358 ms	9816 KB	Output is correct

Subtask #15
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	262 ms	9820 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #16
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	263 ms	11356 KB	Output is correct
2	Correct	304 ms	11356 KB	Output is correct
3	Incorrect	288 ms	11356 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #17
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	304 ms	11356 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #18
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	297 ms	12892 KB	Output is correct
2	Correct	335 ms	12892 KB	Output is correct
3	Incorrect	386 ms	12892 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #19
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	357 ms	12892 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #20
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	351 ms	15960 KB	Output is correct
2	Correct	424 ms	15960 KB	Output is correct
3	Incorrect	416 ms	15960 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #21
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	433 ms	15964 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

답안 #1035103

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