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# your code goes here
from numba import cuda
import numpy as np
import math
data = np.load('example_data.npy')
def ridge_detection(f, thres):
    count = np.zeros(f.shape)
    for i in range(len(f)):
        for j in range(len(f[i])):
            if (
                i > 0
                and j > 0
                and i < (len(f) - 1)
                and j < (len(f[i]) - 1)
                and f[i, j] > thres
                and ~np.isnan(f[i, j])
            ):
                step_i = i
                step_j = j
                for k in range(1000):
                    if (
                        step_i == 0
                        or step_j == 0
                        or step_i == (len(f) - 1)
                        or step_j == (len(f[i]) - 1)
                    ):
                        break
                    index = np.nanargmax(
                        f[step_i - 1 : step_i + 2, step_j - 1 : step_j + 2].data
                    )
                    vmax = np.nanmax(
                        f[step_i - 1 : step_i + 2, step_j - 1 : step_j + 2].data
                    )
                    if index == 4 or vmax == f[step_i, step_j] or np.isnan(vmax):
                        break
                    row = int(index / 3)
                    col = index % 3
                    count[step_i - 1 + row, step_j - 1 + col] += 1
                    step_i = step_i - 1 + row
                    step_j = step_j - 1 + col
                    %%time
results = ridge_detection(data, 0)
    return count

Traceback (most recent call last):
  File "/usr/lib/python3.9/py_compile.py", line 144, in compile
    code = loader.source_to_code(source_bytes, dfile or file,
  File "<frozen importlib._bootstrap_external>", line 918, in source_to_code
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "./prog.py", line 41
    %%time
    ^
SyntaxError: invalid syntax

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python3.9/py_compile.py", line 150, in compile
    raise py_exc
py_compile.PyCompileError:   File "./prog.py", line 41
    %%time
    ^
SyntaxError: invalid syntax

Standard output is empty