답안 #916411

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
916411	2024-01-25T20:01:03 Z	codefox	Mobile (BOI12_mobile)	C++14	100 / 100	488 ms	35160 KB

mobile

#include<bits/stdc++.h>
 
using namespace std;
 
#define double long double
#define ll long long
#define pii pair<ll, ll>
#define pdd pair<double, double>
 
double prec = 1e6;
 
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
 
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    
    cout << setprecision(20);
    int n, l;
    cin >> n >> l;
    vector<pii> stations(n);
    for (int i = 0; i < n; i++)
    {
        int a, b;
        cin >> a >> b;
        stations[i] = {a, b};
    }
    double dist = 0;
    ll one = 1;
    for (int i = 60; i >= 0; i--)
    {
        dist += (one<<i)/prec;
        double highest = 0;
 
        for (pii ele:stations)
        {
            double dy = ele.second*ele.second;
            double diff = dist*dist-dy;
            if (diff <= 0) continue;
            double dx = sqrt(diff);
            double f = ele.first-dx;
            double s = ele.first+dx;
            if (f < highest) highest = max(highest, s);
        }
        if (highest < l) continue;
        dist -= (one<<i)/prec; 
    }
    cout << dist << "\n";
    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	344 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	1 ms	348 KB	Output is correct
2	Correct	2 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
4.0 / 4.0

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

Subtask #6
5.0 / 5.0

#	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	2 ms	348 KB	Output is correct
4	Correct	2 ms	348 KB	Output is correct
5	Correct	2 ms	348 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	36 ms	1628 KB	Output is correct
2	Correct	30 ms	1624 KB	Output is correct
3	Correct	19 ms	1116 KB	Output is correct
4	Correct	24 ms	1628 KB	Output is correct
5	Correct	15 ms	1116 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	1628 KB	Output is correct
2	Correct	22 ms	1372 KB	Output is correct
3	Correct	28 ms	1628 KB	Output is correct
4	Correct	26 ms	1624 KB	Output is correct
5	Correct	28 ms	1628 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	33 ms	1624 KB	Output is correct
2	Correct	31 ms	1624 KB	Output is correct
3	Correct	29 ms	1628 KB	Output is correct
4	Correct	31 ms	1884 KB	Output is correct
5	Correct	28 ms	1628 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	40 ms	1880 KB	Output is correct
2	Correct	38 ms	1880 KB	Output is correct
3	Correct	34 ms	1884 KB	Output is correct
4	Correct	32 ms	1884 KB	Output is correct
5	Correct	38 ms	1884 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	41 ms	2136 KB	Output is correct
2	Correct	43 ms	1880 KB	Output is correct
3	Correct	34 ms	1880 KB	Output is correct
4	Correct	31 ms	2028 KB	Output is correct
5	Correct	31 ms	1884 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	191 ms	8284 KB	Output is correct
3	Correct	190 ms	8284 KB	Output is correct
4	Correct	150 ms	8536 KB	Output is correct
5	Correct	153 ms	8284 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	193 ms	8280 KB	Output is correct
2	Correct	277 ms	8284 KB	Output is correct
3	Correct	165 ms	8284 KB	Output is correct
4	Correct	155 ms	8480 KB	Output is correct
5	Correct	150 ms	8280 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	225 ms	9816 KB	Output is correct
2	Correct	239 ms	19028 KB	Output is correct
3	Correct	233 ms	18540 KB	Output is correct
4	Correct	186 ms	21584 KB	Output is correct
5	Correct	185 ms	17648 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	243 ms	9820 KB	Output is correct
2	Correct	325 ms	13904 KB	Output is correct
3	Correct	205 ms	13168 KB	Output is correct
4	Correct	182 ms	15724 KB	Output is correct
5	Correct	181 ms	14304 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	268 ms	11352 KB	Output is correct
2	Correct	273 ms	17024 KB	Output is correct
3	Correct	266 ms	16724 KB	Output is correct
4	Correct	215 ms	18172 KB	Output is correct
5	Correct	215 ms	16212 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	264 ms	11356 KB	Output is correct
2	Correct	360 ms	16208 KB	Output is correct
3	Correct	236 ms	15700 KB	Output is correct
4	Correct	225 ms	18516 KB	Output is correct
5	Correct	213 ms	16652 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	299 ms	12888 KB	Output is correct
2	Correct	304 ms	25264 KB	Output is correct
3	Correct	313 ms	24484 KB	Output is correct
4	Correct	246 ms	28584 KB	Output is correct
5	Correct	245 ms	23896 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	312 ms	12888 KB	Output is correct
2	Correct	393 ms	18588 KB	Output is correct
3	Correct	282 ms	17964 KB	Output is correct
4	Correct	245 ms	20780 KB	Output is correct
5	Correct	266 ms	19100 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	372 ms	15960 KB	Output is correct
2	Correct	399 ms	31480 KB	Output is correct
3	Correct	381 ms	30444 KB	Output is correct
4	Correct	341 ms	35160 KB	Output is correct
5	Correct	332 ms	29680 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	382 ms	25316 KB	Output is correct
2	Correct	488 ms	26296 KB	Output is correct
3	Correct	375 ms	25428 KB	Output is correct
4	Correct	325 ms	30940 KB	Output is correct
5	Correct	321 ms	27608 KB	Output is correct

답안 #916411

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