답안 #684376

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
684376	2023-01-21T05:06:29 Z	handlename	Mobile (BOI12_mobile)	C++17	70 / 100	1000 ms	31756 KB

mobile

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define float long double
const int MOD=1e9+7;
//const int MOD=998244353;
const int sqn=450;
const long double eps=1e-4;
long double n,l,x[1000002],y[1000002];
void runtc(){
	cin>>n>>l;
	for (int i=1;i<=n;i++){
		cin>>x[i]>>y[i];
	}
	long double mini=0,maxi=2e9;
	while (mini+eps<maxi){
		long double mid=(mini+maxi)/2;
		long double cur=0;
		for (int i=1;i<=n;i++){
			long double lol=sqrt(mid*mid-y[i]*y[i]);
			if (x[i]-lol<=cur) cur=max(cur,x[i]+lol);
		}
		if (cur>=l) maxi=mid;
		else mini=mid;
	}
  	cout<<fixed<<setprecision(4);
	cout<<maxi;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    //freopen("moocast.in","r",stdin);
    //freopen("moocast.out","w",stdout);
    //freopen("input1.in","r",stdin);
    //freopen("output1.out","w",stdout);
    //freopen("perfectly_balanced_chapter_1_input.txt","r",stdin);
    //freopen("hackercup_output.txt","w",stdout);
    int tc;
    //cin>>tc;
    tc=1;
    for (int i=1;i<=tc;i++){
        //cout<<"Case #"<<i<<": ";
        runtc();
    }
}

Subtask #1
4.0 / 4.0

#	결과	메모리	Grader output
1	Correct	340 KB	Output is correct
2	Correct	340 KB	Output is correct
3	Correct	340 KB	Output is correct
4	Correct	340 KB	Output is correct

Subtask #2
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	340 KB	Output is correct
2	Correct	2 ms	368 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct
4	Correct	2 ms	340 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	508 KB	Output is correct
2	Correct	4 ms	468 KB	Output is correct
3	Correct	4 ms	468 KB	Output is correct
4	Correct	7 ms	468 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	468 KB	Output is correct
2	Correct	4 ms	416 KB	Output is correct
3	Correct	4 ms	468 KB	Output is correct
4	Correct	7 ms	500 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	468 KB	Output is correct
2	Correct	5 ms	468 KB	Output is correct
3	Correct	4 ms	468 KB	Output is correct
4	Correct	8 ms	504 KB	Output is correct
5	Correct	5 ms	468 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	83 ms	2672 KB	Output is correct
2	Correct	54 ms	2732 KB	Output is correct
3	Correct	43 ms	2004 KB	Output is correct
4	Correct	103 ms	2636 KB	Output is correct
5	Correct	50 ms	1996 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	87 ms	2780 KB	Output is correct
2	Correct	84 ms	2532 KB	Output is correct
3	Correct	101 ms	2760 KB	Output is correct
4	Correct	105 ms	2760 KB	Output is correct
5	Correct	126 ms	3056 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	55 ms	3084 KB	Output is correct
2	Correct	59 ms	2828 KB	Output is correct
3	Correct	71 ms	2980 KB	Output is correct
4	Correct	151 ms	3344 KB	Output is correct
5	Correct	102 ms	3044 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	72 ms	3468 KB	Output is correct
2	Correct	70 ms	3464 KB	Output is correct
3	Correct	80 ms	3460 KB	Output is correct
4	Correct	154 ms	3444 KB	Output is correct
5	Correct	126 ms	3444 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	75 ms	3460 KB	Output is correct
2	Correct	71 ms	3460 KB	Output is correct
3	Correct	78 ms	3388 KB	Output is correct
4	Correct	171 ms	3464 KB	Output is correct
5	Correct	128 ms	3512 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	319 ms	15900 KB	Output is correct
2	Correct	357 ms	15988 KB	Output is correct
3	Correct	348 ms	15924 KB	Output is correct
4	Correct	756 ms	15988 KB	Output is correct
5	Correct	638 ms	16076 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	363 ms	15984 KB	Output is correct
2	Correct	583 ms	15948 KB	Output is correct
3	Correct	393 ms	15968 KB	Output is correct
4	Correct	758 ms	16060 KB	Output is correct
5	Correct	654 ms	16076 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	387 ms	19232 KB	Output is correct
2	Correct	432 ms	19032 KB	Output is correct
3	Correct	431 ms	19148 KB	Output is correct
4	Correct	918 ms	19148 KB	Output is correct
5	Correct	736 ms	19124 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	439 ms	19120 KB	Output is correct
2	Correct	695 ms	19112 KB	Output is correct
3	Correct	481 ms	19068 KB	Output is correct
4	Correct	908 ms	19148 KB	Output is correct
5	Correct	768 ms	19176 KB	Output is correct

Subtask #16
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	446 ms	22248 KB	Output is correct
2	Correct	511 ms	22276 KB	Output is correct
3	Correct	486 ms	22220 KB	Output is correct
4	Execution timed out	1043 ms	22384 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #17
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	509 ms	22192 KB	Output is correct
2	Correct	813 ms	22288 KB	Output is correct
3	Correct	579 ms	22248 KB	Output is correct
4	Execution timed out	1059 ms	22316 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #18
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	515 ms	25448 KB	Output is correct
2	Correct	576 ms	25292 KB	Output is correct
3	Correct	576 ms	25344 KB	Output is correct
4	Execution timed out	1090 ms	25352 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #19
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	591 ms	25412 KB	Output is correct
2	Correct	955 ms	25552 KB	Output is correct
3	Correct	653 ms	25444 KB	Output is correct
4	Execution timed out	1087 ms	25316 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #20
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	640 ms	31704 KB	Output is correct
2	Correct	716 ms	31692 KB	Output is correct
3	Correct	690 ms	31508 KB	Output is correct
4	Execution timed out	1090 ms	31564 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #21
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	726 ms	31756 KB	Output is correct
2	Execution timed out	1085 ms	31604 KB	Time limit exceeded
3	Halted	0 ms	0 KB	-

답안 #684376

Compilation message