답안 #1096176

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1096176	2024-10-04T03:55:13 Z	Omar_Elgedawy	Mobile (BOI12_mobile)	C++17	100 / 100	537 ms	35412 KB

mobile

#include <bits/stdc++.h>

using namespace std;
#define int long long
#define ld double
#define F first
#define S second
#define el '\n'
#define cout(x) for(auto v:x)cout<<v<<el
#define coutp(x) for(auto v:x)cout<<v.F<<' '<<v.S<<el
#define cin(x) for(auto &v:x)cin>>v;
#define pb(x) push_back(x)
#define all(x)  x.begin(),x.end()

const int N = 5e3 + 5, M = 1e2 + 5, Mod = 1e9 + 7;
int dx[8] = {1, -1, 0, 0, 1, -1, 1, -1};
int dy[8] = {0, 0, 1, -1, 1, -1, -1, 1};

int nxt()
{
    int x;
    cin >> x;
    return x;
}
void solve(int h)
{
    int n;
    ld m;
    cin>>n>>m;
    ld x[n],y[n];
    for(int i=0;i<n;i++)
    {
        cin>>x[i]>>y[i];
    }
    ld l=1,r=1.5e9;
    while(r-l>1e-3)
    {
        ld mid=(r+l)/2.0;
        ld cur=0;
        for(int i=0;i<n;i++)
        {
            ld dist=sqrt(mid*mid-y[i]*y[i]);
            ld left=x[i]-dist;
            ld right=x[i]+dist;
            if(left<=cur)cur=max(cur,right);
        }
        if(cur>=m)
            r=mid;
        else
            l=mid;
    }
    cout<<fixed<<setprecision(4)<<l;
}

int32_t main()
{
    // #ifndef ONLINE_JUDGE
    // freopen("input.txt", "r" , stdin);
    // freopen("output.txt", "w", stdout);
    // freopen("feast.in", "r", stdin);
    // freopen("feast.out", "w", stdout);
    // #endif
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int tc = 1;
    // cin >> tc;
    for (int i = 1; i <= tc; i++)solve(i);
    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	1 ms	456 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	512 KB	Output is correct
2	Correct	1 ms	344 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	516 KB	Output is correct
2	Correct	4 ms	348 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	3 ms	604 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	348 KB	Output is correct
2	Correct	2 ms	596 KB	Output is correct
3	Correct	3 ms	568 KB	Output is correct
4	Correct	3 ms	604 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	344 KB	Output is correct
2	Correct	2 ms	464 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	3 ms	604 KB	Output is correct
5	Correct	3 ms	348 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	35 ms	2396 KB	Output is correct
2	Correct	34 ms	2648 KB	Output is correct
3	Correct	21 ms	1884 KB	Output is correct
4	Correct	36 ms	2652 KB	Output is correct
5	Correct	19 ms	1628 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	34 ms	2296 KB	Output is correct
2	Correct	32 ms	2364 KB	Output is correct
3	Correct	48 ms	2704 KB	Output is correct
4	Correct	37 ms	2688 KB	Output is correct
5	Correct	40 ms	3280 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	32 ms	2500 KB	Output is correct
2	Correct	39 ms	2652 KB	Output is correct
3	Correct	35 ms	2652 KB	Output is correct
4	Correct	52 ms	3676 KB	Output is correct
5	Correct	37 ms	2724 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	42 ms	3420 KB	Output is correct
2	Correct	39 ms	3400 KB	Output is correct
3	Correct	38 ms	2904 KB	Output is correct
4	Correct	56 ms	3536 KB	Output is correct
5	Correct	42 ms	3152 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	42 ms	3416 KB	Output is correct
2	Correct	40 ms	3272 KB	Output is correct
3	Correct	39 ms	2908 KB	Output is correct
4	Correct	50 ms	3668 KB	Output is correct
5	Correct	46 ms	3160 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	206 ms	11860 KB	Output is correct
2	Correct	215 ms	14576 KB	Output is correct
3	Correct	198 ms	14164 KB	Output is correct
4	Correct	240 ms	15952 KB	Output is correct
5	Correct	213 ms	14016 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	199 ms	15136 KB	Output is correct
2	Correct	255 ms	13740 KB	Output is correct
3	Correct	188 ms	13000 KB	Output is correct
4	Correct	233 ms	15700 KB	Output is correct
5	Correct	222 ms	14164 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	229 ms	14220 KB	Output is correct
2	Correct	241 ms	17484 KB	Output is correct
3	Correct	237 ms	16728 KB	Output is correct
4	Correct	299 ms	19124 KB	Output is correct
5	Correct	274 ms	16472 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	247 ms	17996 KB	Output is correct
2	Correct	328 ms	16220 KB	Output is correct
3	Correct	229 ms	15696 KB	Output is correct
4	Correct	302 ms	19152 KB	Output is correct
5	Correct	276 ms	16936 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	257 ms	16280 KB	Output is correct
2	Correct	276 ms	20304 KB	Output is correct
3	Correct	326 ms	19536 KB	Output is correct
4	Correct	358 ms	21908 KB	Output is correct
5	Correct	337 ms	18768 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	294 ms	20564 KB	Output is correct
2	Correct	363 ms	18896 KB	Output is correct
3	Correct	295 ms	18260 KB	Output is correct
4	Correct	333 ms	22136 KB	Output is correct
5	Correct	308 ms	21328 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	284 ms	18712 KB	Output is correct
2	Correct	321 ms	22868 KB	Output is correct
3	Correct	304 ms	22356 KB	Output is correct
4	Correct	365 ms	25428 KB	Output is correct
5	Correct	334 ms	23952 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	318 ms	23316 KB	Output is correct
2	Correct	381 ms	21584 KB	Output is correct
3	Correct	290 ms	20888 KB	Output is correct
4	Correct	437 ms	25100 KB	Output is correct
5	Correct	356 ms	24356 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	378 ms	23000 KB	Output is correct
2	Correct	409 ms	28424 KB	Output is correct
3	Correct	404 ms	27472 KB	Output is correct
4	Correct	537 ms	31148 KB	Output is correct
5	Correct	458 ms	29620 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	422 ms	29008 KB	Output is correct
2	Correct	505 ms	26704 KB	Output is correct
3	Correct	390 ms	28248 KB	Output is correct
4	Correct	534 ms	35412 KB	Output is correct
5	Correct	509 ms	30804 KB	Output is correct

답안 #1096176

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