답안 #973952

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
973952	2024-05-02T13:21:12 Z	andrewp	Mobile (BOI12_mobile)	C++14	100 / 100	341 ms	35432 KB

mobile

//Dedicated to my love,ivaziva
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define dbg(x) cerr<<#x<<": "<<x<<endl;
#define pb push_back
#define fi first
#define se second
#define mp make_pair
#define mt make_tuple
#define pii pair<int,int>
#define pll pair<ll,ll>
#define ldb double
const ll inf=(ll)1e18+5;
const int mod=1e9+7;
const int K=512;
const int L=30;
const int N=1e6+1;
ll n,l;
pll a[N];
int main()
{
    ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>l;
	for(int i=0;i<n;i++) cin>>a[i].fi>>a[i].se;
	ldb bot=1.00,top=(ldb)1.5e9;
	while(top-bot>1e-3)
    {
		ldb mid=(bot+top)/2,calc=0;
		for(int i=0;i<n;i++)
		{
			ldb razl=sqrt((ldb)(mid*mid)-(ldb)(a[i].se*a[i].se));
			ldb x=(ldb)a[i].fi-razl;
			ldb y=(ldb)a[i].fi+razl;
			if(x<=calc)
            {
                calc=max(calc,y);
            }
		}
		if(calc>=(ldb)l) top=mid;
		else bot=mid;
	}
	cout<<fixed<<setprecision(4)<<bot;
    return 0;
}

Subtask #1
4.0 / 4.0

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

Subtask #2
4.0 / 4.0

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

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 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
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 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	1 ms	348 KB	Output is correct
3	Correct	1 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	1 ms	344 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	24 ms	2652 KB	Output is correct
2	Correct	19 ms	2652 KB	Output is correct
3	Correct	15 ms	2692 KB	Output is correct
4	Correct	27 ms	2904 KB	Output is correct
5	Correct	12 ms	2652 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	2652 KB	Output is correct
2	Correct	23 ms	2652 KB	Output is correct
3	Correct	23 ms	2648 KB	Output is correct
4	Correct	25 ms	2652 KB	Output is correct
5	Correct	27 ms	2696 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	2652 KB	Output is correct
2	Correct	20 ms	2696 KB	Output is correct
3	Correct	19 ms	2652 KB	Output is correct
4	Correct	32 ms	2648 KB	Output is correct
5	Correct	29 ms	2652 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	2652 KB	Output is correct
2	Correct	23 ms	2652 KB	Output is correct
3	Correct	23 ms	2692 KB	Output is correct
4	Correct	32 ms	2904 KB	Output is correct
5	Correct	29 ms	2708 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	24 ms	2652 KB	Output is correct
2	Correct	23 ms	2652 KB	Output is correct
3	Correct	23 ms	2652 KB	Output is correct
4	Correct	32 ms	2696 KB	Output is correct
5	Correct	27 ms	2652 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	106 ms	12108 KB	Output is correct
2	Correct	124 ms	16468 KB	Output is correct
3	Correct	120 ms	16040 KB	Output is correct
4	Correct	159 ms	18256 KB	Output is correct
5	Correct	152 ms	15444 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	122 ms	14932 KB	Output is correct
2	Correct	183 ms	15184 KB	Output is correct
3	Correct	121 ms	14572 KB	Output is correct
4	Correct	163 ms	18148 KB	Output is correct
5	Correct	163 ms	15976 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	134 ms	14964 KB	Output is correct
2	Correct	146 ms	20144 KB	Output is correct
3	Correct	147 ms	19432 KB	Output is correct
4	Correct	222 ms	22752 KB	Output is correct
5	Correct	169 ms	18856 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	151 ms	18768 KB	Output is correct
2	Correct	214 ms	18804 KB	Output is correct
3	Correct	142 ms	17748 KB	Output is correct
4	Correct	193 ms	22596 KB	Output is correct
5	Correct	172 ms	19540 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	180 ms	17964 KB	Output is correct
2	Correct	168 ms	23536 KB	Output is correct
3	Correct	170 ms	22900 KB	Output is correct
4	Correct	284 ms	26452 KB	Output is correct
5	Correct	198 ms	21840 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	173 ms	22356 KB	Output is correct
2	Correct	245 ms	22176 KB	Output is correct
3	Correct	167 ms	21304 KB	Output is correct
4	Correct	267 ms	26296 KB	Output is correct
5	Correct	212 ms	23436 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	167 ms	21112 KB	Output is correct
2	Correct	196 ms	27380 KB	Output is correct
3	Correct	193 ms	26452 KB	Output is correct
4	Correct	276 ms	30620 KB	Output is correct
5	Correct	236 ms	26196 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	200 ms	26496 KB	Output is correct
2	Correct	281 ms	25464 KB	Output is correct
3	Correct	186 ms	24404 KB	Output is correct
4	Correct	261 ms	30448 KB	Output is correct
5	Correct	243 ms	26352 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	207 ms	23672 KB	Output is correct
2	Correct	281 ms	31468 KB	Output is correct
3	Correct	234 ms	30436 KB	Output is correct
4	Correct	328 ms	35156 KB	Output is correct
5	Correct	292 ms	29756 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	253 ms	30548 KB	Output is correct
2	Correct	339 ms	27776 KB	Output is correct
3	Correct	237 ms	28244 KB	Output is correct
4	Correct	341 ms	35432 KB	Output is correct
5	Correct	298 ms	30816 KB	Output is correct

답안 #973952

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