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Submission #1095198

# Submission time Handle Problem Language Result Execution time Memory
1095198 2024-10-01T14:22:26 Z Kodik Mobile (BOI12_mobile) C++17
70 / 100
 1000 ms 31780 KB 
#include <bits/stdc++.h>
using namespace std;
#define ss second
#define ff first
typedef long long ll;
typedef long double ld;
#define int ll






signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    ld n, l; 
    cin >> n >> l;
    pair<ld,ld> bases[1000000];
    for(int i = 0; i < n; ++i){
        cin >> bases[i].ff >> bases[i].ss;
    }
    ld left = 1, right = 2e9;
    while(right-left>1e-4){
        ld mid = left + (right-left)/2;
        ld curr = 0;
        for(int i = 0; i < n; ++i){
            ld x = bases[i].ff;
            ld y = bases[i].ss;
            ld hi_range = sqrt(mid*mid-y*y);
            ld start = x-hi_range, end = x+hi_range;
            if(start<=curr) curr = max(curr, end);
        }
        if(curr>=l){
            right = mid;
        }else{
            left = mid;
        }
    }
    cout << fixed << setprecision(3) << right;
    return 0;   
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 31576 KB Output is correct
2 Correct 17 ms 31552 KB Output is correct
3 Correct 23 ms 31568 KB Output is correct
4 Correct 18 ms 31580 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 31748 KB Output is correct
2 Correct 16 ms 31580 KB Output is correct
3 Correct 17 ms 31640 KB Output is correct
4 Correct 19 ms 31580 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 31644 KB Output is correct
2 Correct 19 ms 31580 KB Output is correct
3 Correct 19 ms 31780 KB Output is correct
4 Correct 17 ms 31580 KB Output is correct

Subtask #4
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 31580 KB Output is correct
2 Correct 33 ms 31580 KB Output is correct
3 Correct 26 ms 31580 KB Output is correct
4 Correct 24 ms 31580 KB Output is correct

Subtask #5
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 31576 KB Output is correct
2 Correct 20 ms 31576 KB Output is correct
3 Correct 20 ms 31580 KB Output is correct
4 Correct 24 ms 31664 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 31580 KB Output is correct
2 Correct 21 ms 31580 KB Output is correct
3 Correct 19 ms 31756 KB Output is correct
4 Correct 24 ms 31580 KB Output is correct
5 Correct 22 ms 31576 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 31580 KB Output is correct
2 Correct 61 ms 31576 KB Output is correct
3 Correct 61 ms 31580 KB Output is correct
4 Correct 120 ms 31576 KB Output is correct
5 Correct 64 ms 31576 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 102 ms 31580 KB Output is correct
2 Correct 104 ms 31576 KB Output is correct
3 Correct 116 ms 31672 KB Output is correct
4 Correct 123 ms 31752 KB Output is correct
5 Correct 139 ms 31576 KB Output is correct

Subtask #9
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 31580 KB Output is correct
2 Correct 56 ms 31664 KB Output is correct
3 Correct 72 ms 31576 KB Output is correct
4 Correct 169 ms 31580 KB Output is correct
5 Correct 127 ms 31764 KB Output is correct

Subtask #10
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 31576 KB Output is correct
2 Correct 66 ms 31576 KB Output is correct
3 Correct 83 ms 31576 KB Output is correct
4 Correct 177 ms 31756 KB Output is correct
5 Correct 138 ms 31580 KB Output is correct

Subtask #11
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 31576 KB Output is correct
2 Correct 68 ms 31576 KB Output is correct
3 Correct 82 ms 31756 KB Output is correct
4 Correct 168 ms 31580 KB Output is correct
5 Correct 140 ms 31580 KB Output is correct

Subtask #12
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 260 ms 31580 KB Output is correct
2 Correct 301 ms 31568 KB Output is correct
3 Correct 266 ms 31576 KB Output is correct
4 Correct 785 ms 31580 KB Output is correct
5 Correct 674 ms 31580 KB Output is correct

Subtask #13
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 259 ms 31580 KB Output is correct
2 Correct 548 ms 31576 KB Output is correct
3 Correct 396 ms 31748 KB Output is correct
4 Correct 774 ms 31748 KB Output is correct
5 Correct 686 ms 31752 KB Output is correct

Subtask #14
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 313 ms 31576 KB Output is correct
2 Correct 321 ms 31580 KB Output is correct
3 Correct 313 ms 31580 KB Output is correct
4 Correct 957 ms 31748 KB Output is correct
5 Correct 821 ms 31752 KB Output is correct

Subtask #15
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 331 ms 31608 KB Output is correct
2 Correct 675 ms 31748 KB Output is correct
3 Correct 456 ms 31576 KB Output is correct
4 Correct 961 ms 31756 KB Output is correct
5 Correct 824 ms 31724 KB Output is correct

Subtask #16
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 378 ms 31752 KB Output is correct
2 Correct 362 ms 31748 KB Output is correct
3 Correct 374 ms 31576 KB Output is correct
4 Execution timed out 1043 ms 31576 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 354 ms 31580 KB Output is correct
2 Correct 766 ms 31752 KB Output is correct
3 Correct 507 ms 31748 KB Output is correct
4 Execution timed out 1063 ms 31580 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 414 ms 31576 KB Output is correct
2 Correct 438 ms 31756 KB Output is correct
3 Correct 428 ms 31756 KB Output is correct
4 Execution timed out 1042 ms 31576 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 422 ms 31580 KB Output is correct
2 Correct 959 ms 31748 KB Output is correct
3 Correct 578 ms 31564 KB Output is correct
4 Execution timed out 1046 ms 31580 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #20
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 519 ms 31576 KB Output is correct
2 Correct 536 ms 31588 KB Output is correct
3 Correct 521 ms 31576 KB Output is correct
4 Execution timed out 1055 ms 31580 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #21
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 503 ms 31576 KB Output is correct
2 Execution timed out 1033 ms 31576 KB Time limit exceeded
3 Halted 0 ms 0 KB -