답안 #1024275

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1024275	2024-07-15T22:30:05 Z	angels	Mobile (BOI12_mobile)	C++14	100 / 100	365 ms	35412 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 long, long long>>v(n);
    for(int i=0; i<n; i++)
    {
        cin>>v[i].first>>v[i].second;
    }
    double l=1, r=1.5e9;
    while(r-l>1e-3)
    {
        double mid=(l+r)/2;
        double granica=0;
        for(int i=0; i<n; i++)
        {
            double opseg=sqrt(mid*mid-v[i].second*v[i].second);
            double minn=v[i].first-opseg;
            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	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	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	456 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	1 ms	360 KB	Output is correct
2	Correct	1 ms	476 KB	Output is correct
3	Correct	1 ms	352 KB	Output is correct
4	Correct	1 ms	352 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	352 KB	Output is correct
2	Correct	1 ms	604 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	2 ms	604 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	348 KB	Output is correct
2	Correct	2 ms	348 KB	Output is correct
3	Correct	1 ms	356 KB	Output is correct
4	Correct	2 ms	600 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	352 KB	Output is correct
2	Correct	1 ms	608 KB	Output is correct
3	Correct	1 ms	600 KB	Output is correct
4	Correct	2 ms	856 KB	Output is correct
5	Correct	2 ms	352 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	29 ms	2396 KB	Output is correct
2	Correct	20 ms	2652 KB	Output is correct
3	Correct	12 ms	1884 KB	Output is correct
4	Correct	23 ms	2648 KB	Output is correct
5	Correct	12 ms	1884 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	2392 KB	Output is correct
2	Correct	20 ms	2140 KB	Output is correct
3	Correct	24 ms	2652 KB	Output is correct
4	Correct	25 ms	2656 KB	Output is correct
5	Correct	33 ms	3212 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	18 ms	2396 KB	Output is correct
2	Correct	20 ms	2896 KB	Output is correct
3	Correct	20 ms	2652 KB	Output is correct
4	Correct	33 ms	3932 KB	Output is correct
5	Correct	23 ms	2652 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	3428 KB	Output is correct
2	Correct	24 ms	3416 KB	Output is correct
3	Correct	22 ms	2908 KB	Output is correct
4	Correct	32 ms	3932 KB	Output is correct
5	Correct	28 ms	3040 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	3428 KB	Output is correct
2	Correct	24 ms	3420 KB	Output is correct
3	Correct	22 ms	2912 KB	Output is correct
4	Correct	35 ms	3932 KB	Output is correct
5	Correct	32 ms	3164 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	102 ms	12492 KB	Output is correct
2	Correct	118 ms	15952 KB	Output is correct
3	Correct	115 ms	15440 KB	Output is correct
4	Correct	156 ms	17748 KB	Output is correct
5	Correct	139 ms	15056 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	114 ms	16460 KB	Output is correct
2	Correct	191 ms	14788 KB	Output is correct
3	Correct	110 ms	13900 KB	Output is correct
4	Correct	148 ms	17492 KB	Output is correct
5	Correct	145 ms	15444 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	120 ms	14928 KB	Output is correct
2	Correct	140 ms	19056 KB	Output is correct
3	Correct	137 ms	18516 KB	Output is correct
4	Correct	200 ms	21588 KB	Output is correct
5	Correct	168 ms	17744 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	141 ms	19540 KB	Output is correct
2	Correct	223 ms	17516 KB	Output is correct
3	Correct	140 ms	16628 KB	Output is correct
4	Correct	185 ms	21332 KB	Output is correct
5	Correct	170 ms	18416 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	136 ms	17416 KB	Output is correct
2	Correct	161 ms	22100 KB	Output is correct
3	Correct	160 ms	21328 KB	Output is correct
4	Correct	214 ms	24916 KB	Output is correct
5	Correct	180 ms	20308 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	163 ms	22864 KB	Output is correct
2	Correct	245 ms	20560 KB	Output is correct
3	Correct	153 ms	19544 KB	Output is correct
4	Correct	221 ms	24716 KB	Output is correct
5	Correct	192 ms	21328 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	156 ms	19796 KB	Output is correct
2	Correct	195 ms	25256 KB	Output is correct
3	Correct	200 ms	24488 KB	Output is correct
4	Correct	270 ms	28496 KB	Output is correct
5	Correct	238 ms	23976 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	215 ms	26140 KB	Output is correct
2	Correct	299 ms	23320 KB	Output is correct
3	Correct	228 ms	22356 KB	Output is correct
4	Correct	277 ms	28328 KB	Output is correct
5	Correct	243 ms	24440 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	207 ms	24660 KB	Output is correct
2	Correct	259 ms	31568 KB	Output is correct
3	Correct	262 ms	30544 KB	Output is correct
4	Correct	337 ms	35044 KB	Output is correct
5	Correct	304 ms	29664 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	285 ms	32340 KB	Output is correct
2	Correct	365 ms	29264 KB	Output is correct
3	Correct	279 ms	28240 KB	Output is correct
4	Correct	352 ms	35412 KB	Output is correct
5	Correct	297 ms	30820 KB	Output is correct

답안 #1024275

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