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730e01e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | # EVOLVE-BLOCK-START
import numpy as np
def transform_grid_attempt_1(grid):
"""
Example transformation:
- Validate input (2D, integer values 0-9).
- Rotate the grid 90 degrees clockwise.
- Increment every cell by 1 modulo 10 (keeps values 0-9).
Returns a new numpy int array.
"""
arr = _validate_grid(grid)
out = np.rot90(arr, k=-1) # 90 degrees clockwise
out = (out + 1) % 10
return out.astype(np.int32)
def transform_grid_attempt_2(grid):
"""
Example transformation:
- Validate input (2D, integer values 0-9).
- Upsample each cell to a 2x2 block (doubling both dimensions).
- Invert colors by mapping v -> 9 - v (keeps values 0-9).
Returns a new numpy int array.
"""
arr = _validate_grid(grid)
out = np.repeat(np.repeat(arr, 2, axis=0), 2, axis=1)
out = 9 - out
return out.astype(np.int32)
# EVOLVE-BLOCK-END
def _validate_grid(grid):
arr = np.asarray(grid)
if arr.ndim != 2:
raise ValueError("Input must be a 2D array.")
# cast to integer type for value checks
if not np.issubdtype(arr.dtype, np.integer):
arr = arr.astype(int)
if arr.size and (arr.min() < 0 or arr.max() > 9):
raise ValueError("Array values must be integers in the range 0-9.")
return arr |