oj.uz

답안 #991329

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
991329 2024-06-02T03:39:47 Z BF001 Mobile (BOI12_mobile) C++17
100 / 100
 355 ms 35412 KB 
#include <bits/stdc++.h>
using namespace std;

#define N 1000005
#define ld double

int n, len;
long long x[N], y[N];

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    
    cin >> n >> len;
    for (int i = 1; i <= n; i++) cin >> x[i] >> y[i];

    ld l = 1, r = 1.5e9;
    while (r - l > 1e-3){
    	ld mid = (l + r) / 2.0;
    	ld cur = 0;
    	for (int i = 1; i <= n; i++){
    		ld denta = sqrt(mid * mid - y[i] * y[i]);
    		ld a = x[i] - denta;
    		ld b = x[i] + denta;
    		if (a <= cur) cur = max(cur, b);
    	}
    	if (cur >= len) r = mid;
    	else l = mid;
    }

    cout << fixed << setprecision(4) << l;
    
    return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2392 KB Output is correct

Subtask #3
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct

Subtask #4
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 2 ms 2396 KB Output is correct

Subtask #5
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2396 KB Output is correct
2 Correct 2 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 2 ms 2396 KB Output is correct

Subtask #6
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2396 KB Output is correct
2 Correct 2 ms 2532 KB Output is correct
3 Correct 1 ms 2532 KB Output is correct
4 Correct 2 ms 2396 KB Output is correct
5 Correct 2 ms 2392 KB Output is correct

Subtask #7
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 6748 KB Output is correct
2 Correct 18 ms 6800 KB Output is correct
3 Correct 16 ms 5468 KB Output is correct
4 Correct 23 ms 7800 KB Output is correct
5 Correct 12 ms 5136 KB Output is correct

Subtask #8
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 6748 KB Output is correct
2 Correct 19 ms 4700 KB Output is correct
3 Correct 22 ms 6744 KB Output is correct
4 Correct 24 ms 7772 KB Output is correct
5 Correct 32 ms 8024 KB Output is correct

Subtask #9
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 6756 KB Output is correct
2 Correct 19 ms 6748 KB Output is correct
3 Correct 20 ms 7516 KB Output is correct
4 Correct 34 ms 8568 KB Output is correct
5 Correct 24 ms 7512 KB Output is correct

Subtask #10
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 6748 KB Output is correct
2 Correct 23 ms 6748 KB Output is correct
3 Correct 22 ms 7772 KB Output is correct
4 Correct 32 ms 8540 KB Output is correct
5 Correct 35 ms 8028 KB Output is correct

Subtask #11
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 6796 KB Output is correct
2 Correct 23 ms 6748 KB Output is correct
3 Correct 22 ms 7832 KB Output is correct
4 Correct 34 ms 8704 KB Output is correct
5 Correct 28 ms 8072 KB Output is correct

Subtask #12
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 102 ms 10892 KB Output is correct
2 Correct 115 ms 10836 KB Output is correct
3 Correct 120 ms 18004 KB Output is correct
4 Correct 158 ms 20304 KB Output is correct
5 Correct 140 ms 17532 KB Output is correct

Subtask #13
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 116 ms 10872 KB Output is correct
2 Correct 198 ms 17532 KB Output is correct
3 Correct 112 ms 16468 KB Output is correct
4 Correct 153 ms 20048 KB Output is correct
5 Correct 152 ms 18000 KB Output is correct

Subtask #14
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 121 ms 14932 KB Output is correct
2 Correct 142 ms 14980 KB Output is correct
3 Correct 138 ms 23680 KB Output is correct
4 Correct 191 ms 26928 KB Output is correct
5 Correct 198 ms 22868 KB Output is correct

Subtask #15
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 159 ms 14968 KB Output is correct
2 Correct 223 ms 22864 KB Output is correct
3 Correct 134 ms 21624 KB Output is correct
4 Correct 212 ms 26704 KB Output is correct
5 Correct 170 ms 23640 KB Output is correct

Subtask #16
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 140 ms 14984 KB Output is correct
2 Correct 166 ms 14928 KB Output is correct
3 Correct 163 ms 24912 KB Output is correct
4 Correct 232 ms 28752 KB Output is correct
5 Correct 196 ms 23932 KB Output is correct

Subtask #17
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 170 ms 14984 KB Output is correct
2 Correct 279 ms 24436 KB Output is correct
3 Correct 161 ms 23120 KB Output is correct
4 Correct 217 ms 28248 KB Output is correct
5 Correct 201 ms 25084 KB Output is correct

Subtask #18
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 182 ms 14988 KB Output is correct
2 Correct 185 ms 14984 KB Output is correct
3 Correct 184 ms 26484 KB Output is correct
4 Correct 274 ms 30548 KB Output is correct
5 Correct 234 ms 26192 KB Output is correct

Subtask #19
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 187 ms 14928 KB Output is correct
2 Correct 285 ms 25336 KB Output is correct
3 Correct 181 ms 24400 KB Output is correct
4 Correct 295 ms 30324 KB Output is correct
5 Correct 228 ms 26580 KB Output is correct

Subtask #20
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 199 ms 15956 KB Output is correct
2 Correct 264 ms 15996 KB Output is correct
3 Correct 234 ms 30840 KB Output is correct
4 Correct 355 ms 35156 KB Output is correct
5 Correct 274 ms 29524 KB Output is correct

Subtask #21
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 264 ms 15956 KB Output is correct
2 Correct 335 ms 29268 KB Output is correct
3 Correct 230 ms 28388 KB Output is correct
4 Correct 319 ms 35412 KB Output is correct
5 Correct 318 ms 30804 KB Output is correct