답안 #1024267

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1024267	2024-07-15T22:22:07 Z	angels	Mobile (BOI12_mobile)	C++14	90 / 100	1000 ms	50952 KB

mobile

#include <bits/stdc++.h>
using namespace std;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    long long int n, L;
    cin>>n>>L;
    vector<pair<long double, long double>>v(n);
    for(int i=0; i<n; i++)
    {
        cin>>v[i].first>>v[i].second;
    }
    long double l=1, r=1.2e9;
    while(r-l>1e-3)
    {
        long double mid=(l+r)/2.0;
        long double granica=0;
        for(int i=0; i<n; i++)
        {
            long double opseg=sqrt(mid*mid-v[i].second*v[i].second);
            long double minn=v[i].first-opseg;
            long double maxx=v[i].first+opseg;
            if(minn<=granica)
            {
                granica=max(granica, maxx);
            }
        }
        if(granica<L)
        {
            l=mid;
        }
        else
            r=mid;
    }
    cout<<fixed<<setprecision(4)<<l;

    return 0;
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct

Subtask #2
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	344 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	348 KB	Output is correct
2	Correct	3 ms	468 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	2 ms	348 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	600 KB	Output is correct
2	Correct	3 ms	604 KB	Output is correct
3	Correct	3 ms	604 KB	Output is correct
4	Correct	6 ms	604 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	600 KB	Output is correct
2	Correct	3 ms	604 KB	Output is correct
3	Correct	3 ms	604 KB	Output is correct
4	Correct	6 ms	604 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	604 KB	Output is correct
2	Correct	3 ms	472 KB	Output is correct
3	Correct	3 ms	604 KB	Output is correct
4	Correct	6 ms	604 KB	Output is correct
5	Correct	4 ms	604 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	63 ms	3416 KB	Output is correct
2	Correct	40 ms	3676 KB	Output is correct
3	Correct	33 ms	2648 KB	Output is correct
4	Correct	83 ms	3844 KB	Output is correct
5	Correct	41 ms	2392 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	73 ms	3416 KB	Output is correct
2	Correct	68 ms	3416 KB	Output is correct
3	Correct	84 ms	3928 KB	Output is correct
4	Correct	90 ms	3928 KB	Output is correct
5	Correct	106 ms	4580 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	46 ms	3672 KB	Output is correct
2	Correct	43 ms	4184 KB	Output is correct
3	Correct	56 ms	3864 KB	Output is correct
4	Correct	126 ms	5488 KB	Output is correct
5	Correct	78 ms	4188 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	49 ms	4944 KB	Output is correct
2	Correct	54 ms	4956 KB	Output is correct
3	Correct	59 ms	4440 KB	Output is correct
4	Correct	119 ms	5464 KB	Output is correct
5	Correct	97 ms	4700 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	58 ms	4952 KB	Output is correct
2	Correct	59 ms	4948 KB	Output is correct
3	Correct	59 ms	4432 KB	Output is correct
4	Correct	120 ms	5456 KB	Output is correct
5	Correct	104 ms	4692 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	262 ms	20304 KB	Output is correct
2	Correct	253 ms	23632 KB	Output is correct
3	Correct	243 ms	23120 KB	Output is correct
4	Correct	570 ms	25424 KB	Output is correct
5	Correct	492 ms	22868 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	239 ms	24148 KB	Output is correct
2	Correct	432 ms	22612 KB	Output is correct
3	Correct	312 ms	21844 KB	Output is correct
4	Correct	590 ms	25276 KB	Output is correct
5	Correct	523 ms	23280 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	295 ms	24400 KB	Output is correct
2	Correct	302 ms	28316 KB	Output is correct
3	Correct	278 ms	27732 KB	Output is correct
4	Correct	719 ms	31056 KB	Output is correct
5	Correct	640 ms	26964 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	290 ms	29012 KB	Output is correct
2	Correct	540 ms	27048 KB	Output is correct
3	Correct	353 ms	25896 KB	Output is correct
4	Correct	671 ms	30800 KB	Output is correct
5	Correct	622 ms	27732 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	337 ms	28372 KB	Output is correct
2	Correct	326 ms	33104 KB	Output is correct
3	Correct	345 ms	32340 KB	Output is correct
4	Correct	799 ms	35812 KB	Output is correct
5	Correct	656 ms	31316 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	335 ms	33748 KB	Output is correct
2	Correct	595 ms	31568 KB	Output is correct
3	Correct	414 ms	30548 KB	Output is correct
4	Correct	819 ms	35664 KB	Output is correct
5	Correct	682 ms	32336 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	381 ms	32340 KB	Output is correct
2	Correct	383 ms	37840 KB	Output is correct
3	Correct	389 ms	36948 KB	Output is correct
4	Correct	929 ms	41104 KB	Output is correct
5	Correct	758 ms	36432 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	397 ms	38472 KB	Output is correct
2	Correct	685 ms	35920 KB	Output is correct
3	Correct	461 ms	34896 KB	Output is correct
4	Correct	959 ms	40784 KB	Output is correct
5	Correct	787 ms	36944 KB	Output is correct

Subtask #20
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	506 ms	40320 KB	Output is correct
2	Correct	509 ms	47184 KB	Output is correct
3	Correct	478 ms	46164 KB	Output is correct
4	Execution timed out	1057 ms	50696 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #21
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	490 ms	48132 KB	Output is correct
2	Correct	851 ms	44884 KB	Output is correct
3	Correct	611 ms	44116 KB	Output is correct
4	Execution timed out	1032 ms	50952 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

답안 #1024267

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