답안 #958778

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
958778	2024-04-06T15:15:23 Z	Trisanu_Das	Mobile (BOI12_mobile)	C++17	100 / 100	348 ms	35428 KB

mobile

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ff first
#define ss second

signed main(){
  ios_base::sync_with_stdio(false); cin.tie(NULL);
  int n, L; cin >> n >> L;
  pair<int, int> p[n]; for(int i = 0; i < n; i++) cin >> p[i].ff >> p[i].ss;
  double l = 1, r = 1.5e9;
  while(r - l > 1e-3){
    double mid = (l + r) / 2, chk = 0;
    for(int i = 0; i < n; i++){
      double d = sqrt(mid * mid - p[i].ss * p[i].ss);
      double a = p[i].ff - d, b = p[i].ff + d;
      if(a <= chk) chk = max(chk, b);
    }
    if(chk >= L) r = mid;
    else l = mid;
  }
  cout << fixed << setprecision(4) << l << '\n';
}

Subtask #1
4.0 / 4.0

#	결과	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Correct	460 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	452 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	600 KB	Output is correct
3	Correct	1 ms	348 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	600 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	496 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	600 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	600 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	604 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	720 KB	Output is correct
2	Correct	2 ms	600 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	2 ms	468 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	26 ms	2396 KB	Output is correct
2	Correct	20 ms	2652 KB	Output is correct
3	Correct	13 ms	2136 KB	Output is correct
4	Correct	31 ms	2648 KB	Output is correct
5	Correct	13 ms	1628 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	27 ms	2396 KB	Output is correct
2	Correct	21 ms	2140 KB	Output is correct
3	Correct	24 ms	2652 KB	Output is correct
4	Correct	25 ms	2652 KB	Output is correct
5	Correct	29 ms	3164 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	2392 KB	Output is correct
2	Correct	25 ms	3024 KB	Output is correct
3	Correct	25 ms	2648 KB	Output is correct
4	Correct	34 ms	3932 KB	Output is correct
5	Correct	25 ms	2652 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	27 ms	3552 KB	Output is correct
2	Correct	26 ms	3408 KB	Output is correct
3	Correct	24 ms	3044 KB	Output is correct
4	Correct	35 ms	3932 KB	Output is correct
5	Correct	30 ms	3028 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	3416 KB	Output is correct
2	Correct	30 ms	3420 KB	Output is correct
3	Correct	28 ms	2904 KB	Output is correct
4	Correct	38 ms	3912 KB	Output is correct
5	Correct	33 ms	3164 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	111 ms	12348 KB	Output is correct
2	Correct	131 ms	15940 KB	Output is correct
3	Correct	132 ms	15672 KB	Output is correct
4	Correct	184 ms	17724 KB	Output is correct
5	Correct	153 ms	15092 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	133 ms	16440 KB	Output is correct
2	Correct	184 ms	14672 KB	Output is correct
3	Correct	125 ms	13904 KB	Output is correct
4	Correct	173 ms	17856 KB	Output is correct
5	Correct	151 ms	15560 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	136 ms	15004 KB	Output is correct
2	Correct	159 ms	19116 KB	Output is correct
3	Correct	151 ms	18516 KB	Output is correct
4	Correct	210 ms	21596 KB	Output is correct
5	Correct	181 ms	17760 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	159 ms	19700 KB	Output is correct
2	Correct	232 ms	17752 KB	Output is correct
3	Correct	143 ms	16664 KB	Output is correct
4	Correct	213 ms	21344 KB	Output is correct
5	Correct	200 ms	18552 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	158 ms	17444 KB	Output is correct
2	Correct	174 ms	22100 KB	Output is correct
3	Correct	192 ms	21740 KB	Output is correct
4	Correct	270 ms	24692 KB	Output is correct
5	Correct	227 ms	20432 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	181 ms	22868 KB	Output is correct
2	Correct	280 ms	20604 KB	Output is correct
3	Correct	178 ms	19704 KB	Output is correct
4	Correct	238 ms	24780 KB	Output is correct
5	Correct	219 ms	21488 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	177 ms	19736 KB	Output is correct
2	Correct	196 ms	25372 KB	Output is correct
3	Correct	203 ms	24400 KB	Output is correct
4	Correct	274 ms	28624 KB	Output is correct
5	Correct	249 ms	24188 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	206 ms	25940 KB	Output is correct
2	Correct	292 ms	23540 KB	Output is correct
3	Correct	203 ms	22596 KB	Output is correct
4	Correct	273 ms	28316 KB	Output is correct
5	Correct	248 ms	24728 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	238 ms	24656 KB	Output is correct
2	Correct	251 ms	31632 KB	Output is correct
3	Correct	255 ms	30424 KB	Output is correct
4	Correct	347 ms	35284 KB	Output is correct
5	Correct	331 ms	29908 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	273 ms	32620 KB	Output is correct
2	Correct	348 ms	29516 KB	Output is correct
3	Correct	250 ms	28396 KB	Output is correct
4	Correct	344 ms	35428 KB	Output is correct
5	Correct	306 ms	30800 KB	Output is correct

답안 #958778

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