oj.uz

답안 #842338

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
842338 2023-09-02T18:41:58 Z a5a7 Mobile (BOI12_mobile) C++14
100 / 100
 500 ms 35448 KB 
#include <bits/stdc++.h>
#define ALL(x) (x).begin(), (x).end()
#define REP(i, a, b) for (int i = (a); i < (b); i++)
#define READ(arr, n) for (int i = 0; i < (n); i++) cin >> arr[i];
#define ABS(a) (max((a), -(a)))
#define MOD 1000000007
using namespace std;
typedef long double ld;
typedef long long ll;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n; ll len;
    cin >> n >> len;
    ll x[n], y[n];
    for (int i = 0; i < n; i++) cin >> x[i] >> y[i];
    double left = 1, right = 1.5e9;
    while ((right-left)>1e-3){
        double mid = (left+right)/2, curr = 0;
        for (int i = 0; i < n; i++){
            if (y[i]>mid) continue;
            double sq = sqrt(mid*mid-y[i]*y[i]);
            double l = x[i]-sq, r = x[i]+sq;
            if (curr > l) curr = max(curr, r);
        }
        if (curr >= len){
            right = mid;
        }else{
            left = mid;
        }
    }
    cout << fixed << setprecision(4) << left << endl;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 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 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 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 344 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 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 604 KB Output is correct

Subtask #5
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 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 344 KB Output is correct
2 Correct 2 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 604 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 21 ms 1368 KB Output is correct
2 Correct 19 ms 1624 KB Output is correct
3 Correct 12 ms 1884 KB Output is correct
4 Correct 33 ms 2652 KB Output is correct
5 Correct 12 ms 1628 KB Output is correct

Subtask #8
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 1624 KB Output is correct
2 Correct 27 ms 1372 KB Output is correct
3 Correct 32 ms 1628 KB Output is correct
4 Correct 36 ms 2652 KB Output is correct
5 Correct 40 ms 3072 KB Output is correct

Subtask #9
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 1820 KB Output is correct
2 Correct 20 ms 1624 KB Output is correct
3 Correct 19 ms 2652 KB Output is correct
4 Correct 53 ms 3924 KB Output is correct
5 Correct 29 ms 2724 KB Output is correct

Subtask #10
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 1880 KB Output is correct
2 Correct 25 ms 3408 KB Output is correct
3 Correct 22 ms 2908 KB Output is correct
4 Correct 51 ms 3960 KB Output is correct
5 Correct 40 ms 3164 KB Output is correct

Subtask #11
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 1880 KB Output is correct
2 Correct 25 ms 3412 KB Output is correct
3 Correct 22 ms 2908 KB Output is correct
4 Correct 50 ms 3924 KB Output is correct
5 Correct 42 ms 3536 KB Output is correct

Subtask #12
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 114 ms 8260 KB Output is correct
2 Correct 125 ms 15956 KB Output is correct
3 Correct 123 ms 15444 KB Output is correct
4 Correct 248 ms 17748 KB Output is correct
5 Correct 211 ms 15088 KB Output is correct

Subtask #13
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 124 ms 8024 KB Output is correct
2 Correct 157 ms 14864 KB Output is correct
3 Correct 113 ms 13908 KB Output is correct
4 Correct 247 ms 17492 KB Output is correct
5 Correct 216 ms 15444 KB Output is correct

Subtask #14
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 141 ms 10064 KB Output is correct
2 Correct 156 ms 19028 KB Output is correct
3 Correct 156 ms 18528 KB Output is correct
4 Correct 301 ms 21588 KB Output is correct
5 Correct 261 ms 18004 KB Output is correct

Subtask #15
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 160 ms 9820 KB Output is correct
2 Correct 191 ms 17908 KB Output is correct
3 Correct 130 ms 16468 KB Output is correct
4 Correct 303 ms 21692 KB Output is correct
5 Correct 256 ms 18524 KB Output is correct

Subtask #16
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 153 ms 11352 KB Output is correct
2 Correct 175 ms 22100 KB Output is correct
3 Correct 208 ms 21368 KB Output is correct
4 Correct 358 ms 25172 KB Output is correct
5 Correct 274 ms 20436 KB Output is correct

Subtask #17
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 181 ms 11380 KB Output is correct
2 Correct 218 ms 20612 KB Output is correct
3 Correct 154 ms 19540 KB Output is correct
4 Correct 345 ms 24660 KB Output is correct
5 Correct 297 ms 21532 KB Output is correct

Subtask #18
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 177 ms 12888 KB Output is correct
2 Correct 203 ms 25364 KB Output is correct
3 Correct 199 ms 24404 KB Output is correct
4 Correct 397 ms 28500 KB Output is correct
5 Correct 331 ms 23892 KB Output is correct

Subtask #19
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 203 ms 12952 KB Output is correct
2 Correct 237 ms 23532 KB Output is correct
3 Correct 175 ms 22356 KB Output is correct
4 Correct 399 ms 28244 KB Output is correct
5 Correct 345 ms 24548 KB Output is correct

Subtask #20
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 222 ms 16088 KB Output is correct
2 Correct 255 ms 31572 KB Output is correct
3 Correct 251 ms 30416 KB Output is correct
4 Correct 496 ms 35308 KB Output is correct
5 Correct 406 ms 29512 KB Output is correct

Subtask #21
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 262 ms 16084 KB Output is correct
2 Correct 288 ms 29144 KB Output is correct
3 Correct 226 ms 28240 KB Output is correct
4 Correct 500 ms 35448 KB Output is correct
5 Correct 452 ms 30684 KB Output is correct