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Submission #835819

# Submission time Handle Problem Language Result Execution time Memory
835819 2023-08-23T20:58:09 Z iamjiamingliu Mobile (BOI12_mobile) Python 3
0 / 100
 1000 ms 131072 KB 
import sys
import math

towers_cnt, line_len = map(int, sys.stdin.readline().strip().split())
towers = [tuple(map(int, sys.stdin.readline().strip().split())) for _ in range(towers_cnt)]

def can_cover_whole_line(radius: float) -> bool:
    total_dist = 0
    for x, height in towers:
        if height > radius:     continue
        dist = math.sqrt(radius ** 2 - height ** 2)
        if x - dist <= total_dist <= x + dist:
            total_dist = x + dist
    return total_dist >= line_len

l, r = 0, 2 * 10 ** 9
while not math.isclose(l, r):
    mid = (l + r) / 2
    if can_cover_whole_line(radius=mid):
        r = mid
    else:
        l = mid

print(l)

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Runtime error 14 ms 2772 KB Execution failed because the return code was nonzero
2 Halted 0 ms 0 KB -

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Runtime error 13 ms 2900 KB Execution failed because the return code was nonzero
2 Halted 0 ms 0 KB -

Subtask #3
0 / 4.0

# Verdict Execution time Memory Grader output
1 Runtime error 50 ms 3128 KB Execution failed because the return code was nonzero
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Runtime error 90 ms 3488 KB Execution failed because the return code was nonzero
2 Halted 0 ms 0 KB -

Subtask #5
0 / 4.0

# Verdict Execution time Memory Grader output
1 Runtime error 76 ms 3540 KB Execution failed because the return code was nonzero
2 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 157 ms 3372 KB Output is correct
2 Incorrect 121 ms 3540 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1038 ms 12960 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 986 ms 13192 KB Execution failed because the return code was nonzero
2 Halted 0 ms 0 KB -

Subtask #9
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1073 ms 11936 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1049 ms 16340 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #11
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1042 ms 16460 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #12
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1053 ms 54512 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #13
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1054 ms 70444 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #14
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1049 ms 64916 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #15
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1078 ms 84012 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #16
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1056 ms 75196 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1066 ms 97576 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1078 ms 85572 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1054 ms 111064 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #20
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1026 ms 106232 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #21
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 893 ms 131072 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -