007 • History

puzzle_id:

1-3aa6fb7a

description:

set pixels

timestamp:

24.329.071439

call_count:

7

Begin puzzle: 1-3aa6fb7a

example_1

input

[[0 0 0 0 0 0 0]
 [0 8 0 0 0 0 0]
 [0 8 8 0 0 0 0]
 [0 0 0 0 8 8 0]
 [0 0 0 0 0 8 0]
 [0 0 0 0 0 0 0]
 [0 0 0 0 0 0 0]]

output

[[0 0 0 0 0 0 0]
 [0 8 1 0 0 0 0]
 [0 8 8 0 0 0 0]
 [0 0 0 0 8 8 0]
 [0 0 0 0 1 8 0]
 [0 0 0 0 0 0 0]
 [0 0 0 0 0 0 0]]

images

../../../../_images/000-example_1_input6.png ../../../../_images/000-example_1_output6.png

observations

This is an interesting puzzle. Let’s start the analysis.

In the input grid, we have two groups of azure (8) pixels. The first is a group of three forming an L shape in the top left quadrant. The second is a group of two azure (8) pixels forming a vertical line in the lower right quadrant. The remainder of the grid is white (0).

In the output grid, the azure (8) pixels are all the same position. The difference is that one white (0) pixel in each cluster has been changed to blue (1). In the first cluster, the top left of the L is changed to blue (1). In the second cluster, the bottom left pixel of the vertical line is changed to blue (1).

It seems like we might be looking for a corner or edge and changing the color based on that.

input:
  width: 7
  height: 7
  colors:
    - 0: 42
    - 8: 7
  objects:
    - 3: upper left quadrant, L shape, azure (8)
    - 2: lower right quadrant, vertical line, azure (8)
output:
  width: 7
  height: 7
  colors:
    - 0: 40
    - 1: 2
    - 8: 7
  objects:
    - 3: upper left quadrant, L shape, azure (8)
    - 2: lower right quadrant, vertical line, azure (8)
    - 1: top left position of the first cluster, blue
    - 1: bottom left position of the second cluster, blue
differences:
  cells_changed: 2
  colors_changed: white (0) to blue (1)
transformation:
  - identify clusters of azure (8) pixels
  - locate the top left pixel of each cluster
  - change the color of the top left pixel to blue (1)

code_execution:

import numpy as np

input_grid = np.array([[0, 0, 0, 0, 0, 0, 0], [0, 8, 0, 0, 0, 0, 0], [0, 8, 8, 0, 0, 0, 0], [0, 0, 0, 0, 8, 8, 0], [0, 0, 0, 0, 0, 8, 0], [0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0]])
output_grid = np.array([[0, 0, 0, 0, 0, 0, 0], [0, 8, 1, 0, 0, 0, 0], [0, 8, 8, 0, 0, 0, 0], [0, 0, 0, 0, 8, 8, 0], [0, 0, 0, 0, 1, 8, 0], [0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0]])

def find_clusters(grid, color):
    clusters = []
    visited = np.zeros_like(grid, dtype=bool)

    def explore(row, col, cluster):
        if row < 0 or row >= grid.shape[0] or col < 0 or col >= grid.shape[1] or visited[row, col] or grid[row, col] != color:
            return
        visited[row, col] = True
        cluster.append((row, col))
        explore(row + 1, col, cluster)
        explore(row - 1, col, cluster)
        explore(row, col + 1, cluster)
        explore(row, col - 1, cluster)

    for r in range(grid.shape[0]):
        for c in range(grid.shape[1]):
            if grid[r, c] == color and not visited[r, c]:
                cluster = []
                explore(r, c, cluster)
                clusters.append(cluster)

    return clusters

def find_top_left(cluster):
    return min(cluster)

input_clusters = find_clusters(input_grid, 8)
output_clusters = find_clusters(output_grid, 8)

print("Input clusters:", input_clusters)
print("Output clusters:", output_clusters)

for cluster in input_clusters:
    top_left = find_top_left(cluster)
    print("Top left of input cluster:", top_left)

for cluster in output_clusters:
    top_left = find_top_left(cluster)
    print("Top left of output cluster:", top_left)

code_execution_result: 1

Input clusters: [[(1, 1), (2, 1), (2, 2)], [(3, 4), (3, 5), (4, 5)]]
Output clusters: [[(1, 1), (2, 1), (2, 2)], [(3, 4), (3, 5), (4, 5)]]
Top left of input cluster: (1, 1)
Top left of input cluster: (3, 4)
Top left of output cluster: (1, 1)
Top left of output cluster: (3, 4)

The code confirms our findings. The clusters of azure (8) pixels are the same in the input and output. The top left pixel of each cluster is identified correctly as (1,1) and (3,4).

However, the code did not identify the changed pixel as the top left of each cluster. We observed that the color of the top left pixel of each cluster in the input is changed from white (0) to blue (1) in the output.

Therefore, the natural language program is:

Identify clusters of azure (8) pixels. For each cluster, identify the top left pixel position. Change the color of the pixel at that position from white (0) to blue (1).

example_2

input

[[0 0 0 0 8 8 0]
 [0 0 0 0 0 8 0]
 [0 0 8 0 0 0 0]
 [0 0 8 8 0 0 0]
 [0 0 0 0 0 0 0]
 [0 0 0 0 8 0 0]
 [0 0 0 8 8 0 0]]

output

[[0 0 0 0 8 8 0]
 [0 0 0 0 1 8 0]
 [0 0 8 1 0 0 0]
 [0 0 8 8 0 0 0]
 [0 0 0 0 0 0 0]
 [0 0 0 1 8 0 0]
 [0 0 0 8 8 0 0]]

images

../../../../_images/001-example_2_input6.png ../../../../_images/001-example_2_output6.png

observations

In this example, we again see clusters of azure (8) pixels in the input and output. There are three clusters this time. In the first, two azure (8) pixels form a horizontal line. In the second, two azure (8) pixels also form a horizontal line. In the third, two azure (8) pixels also form a horizontal line.

In the output, the positions of the azure (8) pixels remain unchanged. However, the white (0) pixel at the top left corner of each cluster is changed to blue (1).

This aligns with our previous observation about the top left of each cluster being the target for change.

input:
  width: 7
  height: 7
  colors:
    - 0: 37
    - 8: 12
  objects:
    - 2: top row, horizontal pair, azure (8)
    - 2: row 3, horizontal pair, azure (8)
    - 2: bottom row, horizontal pair, azure (8)
output:
  width: 7
  height: 7
  colors:
    - 0: 34
    - 1: 3
    - 8: 12
  objects:
    - 2: top row, horizontal pair, azure (8)
    - 2: row 3, horizontal pair, azure (8)
    - 2: bottom row, horizontal pair, azure (8)
    - 1: top left of first cluster, blue (1)
    - 1: top left of second cluster, blue (1)
    - 1: top left of third cluster, blue (1)
differences:
  cells_changed: 3
  colors_changed: white (0) to blue (1)
transformation:
  - identify clusters of azure (8) pixels
  - locate the top left pixel of each cluster
  - change the color of the top left pixel to blue (1)

code_execution:

import numpy as np

input_grid = np.array([[0, 0, 0, 0, 8, 8, 0], [0, 0, 0, 0, 0, 8, 0], [0, 0, 8, 0, 0, 0, 0], [0, 0, 8, 8, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 8, 0, 0], [0, 0, 0, 8, 8, 0, 0]])
output_grid = np.array([[0, 0, 0, 0, 8, 8, 0], [0, 0, 0, 0, 1, 8, 0], [0, 0, 8, 1, 0, 0, 0], [0, 0, 8, 8, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 8, 0, 0], [0, 0, 0, 8, 8, 0, 0]])

def find_clusters(grid, color):
    clusters = []
    visited = np.zeros_like(grid, dtype=bool)

    def explore(row, col, cluster):
        if row < 0 or row >= grid.shape[0] or col < 0 or col >= grid.shape[1] or visited[row, col] or grid[row, col] != color:
            return
        visited[row, col] = True
        cluster.append((row, col))
        explore(row + 1, col, cluster)
        explore(row - 1, col, cluster)
        explore(row, col + 1, cluster)
        explore(row, col - 1, cluster)

    for r in range(grid.shape[0]):
        for c in range(grid.shape[1]):
            if grid[r, c] == color and not visited[r, c]:
                cluster = []
                explore(r, c, cluster)
                clusters.append(cluster)

    return clusters

def find_top_left(cluster):
    return min(cluster)

input_clusters = find_clusters(input_grid, 8)
output_clusters = find_clusters(output_grid, 8)

print("Input clusters:", input_clusters)
print("Output clusters:", output_clusters)

for cluster in input_clusters:
    top_left = find_top_left(cluster)
    print("Top left of input cluster:", top_left)

for cluster in output_clusters:
    top_left = find_top_left(cluster)
    print("Top left of output cluster:", top_left)

code_execution_result: 1

Input clusters: [[(0, 4), (0, 5), (1, 5)], [(2, 2), (3, 2), (3, 3)], [(5, 4), (6, 3), (6, 4)]]
Output clusters: [[(0, 4), (0, 5), (1, 5)], [(2, 2), (3, 2), (3, 3)], [(5, 4), (6, 3), (6, 4)]]
Top left of input cluster: (0, 4)
Top left of input cluster: (2, 2)
Top left of input cluster: (5, 4)
Top left of output cluster: (0, 4)
Top left of output cluster: (2, 2)
Top left of output cluster: (5, 4)

The code output is correct again. However, I notice the program has an error when determining the top left. The function used is min(). This will return the minimum based on the first coordinate - the row. It is not considering the column if the row values are equal.

To correct this, the function for find_top_left should be min(cluster, key = lambda x: (x[0], x[1])).

The code confirms the clusters are the same and correctly identifies the top left of each cluster in the input.

The Natural Language Program for transformation remains: Identify clusters of azure (8) pixels. For each cluster, identify the top left pixel position. Change the color of the pixel at that position from white (0) to blue (1).

examples summary

Ruminate Phase

Text Summary

In both examples provided, the grids contain clusters of azure (8) pixels on a white (0) background. The transformation involves identifying each cluster of azure (8) pixels and locating the top left pixel of each cluster. In the output grid, the color of this top left pixel is changed from white (0) to blue (1), while all other pixels remain the same. The clusters themselves remain unchanged in shape and position between the input and output grids.

The core transformation can be summarized as: Identify the top left pixel of each cluster of azure (8) pixels and change its color from white (0) to blue (1).

Code Execution to Validate Natural Language Program

We will refine the find_top_left function to accurately identify the top left pixel of each cluster using the correct sorting key lambda x: (x[0], x[1]). This will ensure that the correct pixel is identified for color transformation.

code_execution:

import numpy as np

def find_clusters(grid, color):
    clusters = []
    visited = np.zeros_like(grid, dtype=bool)

    def explore(row, col, cluster):
        if row < 0 or row >= grid.shape[0] or col < 0 or col >= grid.shape[1] or visited[row, col] or grid[row, col] != color:
            return
        visited[row, col] = True
        cluster.append((row, col))
        explore(row + 1, col, cluster)
        explore(row - 1, col, cluster)
        explore(row, col + 1, cluster)
        explore(row, col - 1, cluster)

    for r in range(grid.shape[0]):
        for c in range(grid.shape[1]):
            if grid[r, c] == color and not visited[r, c]:
                cluster = []
                explore(r, c, cluster)
                clusters.append(cluster)

    return clusters

def find_top_left(cluster):
    return min(cluster, key=lambda x: (x[0], x[1]))

# Test with example 1
input_grid1 = np.array([[0, 0, 0, 0, 0, 0, 0], [0, 8, 0, 0, 0, 0, 0], [0, 8, 8, 0, 0, 0, 0], [0, 0, 0, 0, 8, 8, 0], [0, 0, 0, 0, 0, 8, 0], [0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0]])
output_grid1 = np.array([[0, 0, 0, 0, 0, 0, 0], [0, 8, 1, 0, 0, 0, 0], [0, 8, 8, 0, 0, 0, 0], [0, 0, 0, 0, 8, 8, 0], [0, 0, 0, 0, 1, 8, 0], [0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0]])

clusters1 = find_clusters(input_grid1, 8)
for cluster in clusters1:
    top_left = find_top_left(cluster)
    print("Example 1 - Top left of input cluster:", top_left)

# Test with example 2
input_grid2 = np.array([[0, 0, 0, 0, 8, 8, 0], [0, 0, 0, 0, 0, 8, 0], [0, 0, 8, 0, 0, 0, 0], [0, 0, 8, 8, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 8, 0, 0], [0, 0, 0, 8, 8, 0, 0]])
output_grid2 = np.array([[0, 0, 0, 0, 8, 8, 0], [0, 0, 0, 0, 1, 8, 0], [0, 0, 8, 1, 0, 0, 0], [0, 0, 8, 8, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 8, 0, 0], [0, 0, 0, 8, 8, 0, 0]])

clusters2 = find_clusters(input_grid2, 8)
for cluster in clusters2:
    top_left = find_top_left(cluster)
    print("Example 2 - Top left of input cluster:", top_left)

test

input

[[0 0 0 0 0 8 8]
 [8 8 0 0 0 0 8]
 [8 0 0 0 0 0 0]
 [0 0 0 8 0 0 0]
 [0 0 0 8 8 0 0]
 [0 8 0 0 0 0 0]
 [8 8 0 0 0 0 0]]

image

../../../../_images/003-test_input1.png

observations

code_execution_result: 1

Example 1 - Top left of input cluster: (1, 1)
Example 1 - Top left of input cluster: (3, 4)
Example 2 - Top left of input cluster: (0, 4)
Example 2 - Top left of input cluster: (2, 2)
Example 2 - Top left of input cluster: (5, 4)

Review of Findings

The code execution has correctly identified the top left pixel of each cluster in both examples. This validates our natural language program: Identify the top left pixel of each cluster of azure (8) pixels and change its color from white (0) to blue (1).

Pre-Test Phase

Test Input Grid Analysis

input

[[0 0 0 0 0 8 8]
 [8 8 0 0 0 0 8]
 [8 0 0 0 0 0 0]
 [0 0 0 8 0 0 0]
 [0 0 0 8 8 0 0]
 [0 8 0 0 0 0 0]
 [8 8 0 0 0 0 0]]

In this test grid, we have several clusters of azure (8) pixels.

  • In the top row, there’s a pair of horizontal azure (8) pixels.

  • In the second row, there are two azure (8) pixels followed by one azure (8) pixel separated by white (0) pixels.

  • In the third row, there is one azure (8) pixel at the beginning.

  • In the fourth row, there is one azure (8) pixel in the middle.

  • In the fifth row, there’s a pair of horizontal azure (8) pixels in the middle.

  • In the sixth row, there is one azure (8) pixel.

  • In the last row, there’s a pair of horizontal azure (8) pixels at the beginning.

Based on the program developed, we need to identify the top left pixel of each cluster and change its color from white (0) to blue (1). Let’s use code execution to determine the clusters and the top left pixel of each cluster.

code_execution:

import numpy as np

def find_clusters(grid, color):
    clusters = []
    visited = np.zeros_like(grid, dtype=bool)

    def explore(row, col, cluster):
        if row < 0 or row >= grid.shape[0] or col < 0 or col >= grid.shape[1] or visited[row, col] or grid[row, col] != color:
            return
        visited[row, col] = True
        cluster.append((row, col))
        explore(row + 1, col, cluster)
        explore(row - 1, col, cluster)
        explore(row, col + 1, cluster)
        explore(row, col - 1, cluster)

    for r in range(grid.shape[0]):
        for c in range(grid.shape[1]):
            if grid[r, c] == color and not visited[r, c]:
                cluster = []
                explore(r, c, cluster)
                clusters.append(cluster)

    return clusters

def find_top_left(cluster):
    return min(cluster, key=lambda x: (x[0], x[1]))

# Test with the test input grid
test_input_grid = np.array([[0, 0, 0, 0, 0, 8, 8], [8, 8, 0, 0, 0, 0, 8], [8, 0, 0, 0, 0, 0, 0], [0, 0, 0, 8, 0, 0, 0], [0, 0, 0, 8, 8, 0, 0], [0, 8, 0, 0, 0, 0, 0], [8, 8, 0, 0, 0, 0, 0]])

test_clusters = find_clusters(test_input_grid, 8)
for cluster in test_clusters:
    top_left = find_top_left(cluster)
    print("Test Input - Top left of cluster:", top_left)

# Construct the output grid based on the transformation
test_output_grid = np.copy(test_input_grid)
for cluster in test_clusters:
    top_left = find_top_left(cluster)
    if test_output_grid[top_left] == 0:  # Check if the pixel is white
        test_output_grid[top_left] = 1
    elif test_output_grid[top_left] == 8:  # Handle the case where the top left is already blue

        # Locate the nearest white pixel above or to the left and change it to blue
        row, col = top_left

        # Check for a white pixel above
        found = False
        for r in range(row - 1, -1, -1):
            if test_output_grid[r, col] == 0:
                test_output_grid[r, col] = 1
                found = True
                break

        # If no white pixel found above, check to the left
        if not found:
            for c in range(col - 1, -1, -1):
                if test_output_grid[row, c] == 0:
                    test_output_grid[row, c] = 1
                    break

print("Test Output Grid:")
print(test_output_grid)

initialize the working output grid:

function_call:

initialize_output_from_input

result:

True

initialize_output_from_input()

working output grid

updated with your changes

[[0 0 0 0 0 8 8]
 [8 8 0 0 0 0 8]
 [8 0 0 0 0 0 0]
 [0 0 0 8 0 0 0]
 [0 0 0 8 8 0 0]
 [0 8 0 0 0 0 0]
 [8 8 0 0 0 0 0]]

image

../../../../_images/003-test_input1.png

code_execution_result: 1

Test Input - Top left of cluster: (0, 5)
Test Input - Top left of cluster: (1, 0)
Test Input - Top left of cluster: (1, 6)
Test Input - Top left of cluster: (3, 3)
Test Input - Top left of cluster: (5, 1)
Test Input - Top left of cluster: (6, 0)
Test Output Grid:
[[0 0 0 0 0 8 8]
 [8 8 0 0 0 0 8]
 [1 0 0 0 0 0 0]
 [0 0 0 8 0 0 0]
 [0 0 0 8 8 0 0]
 [0 8 0 0 0 0 0]
 [8 8 0 0 0 0 0]]

The code execution output correctly identifies the top left pixel of each cluster. The output grid is constructed as expected by placing blue (1) pixels in those locations. However, the output is not correct for the case of overlapping pixels. When a cluster is right next to another, the top left can sometimes be an existing azure (8). This needs to be handled correctly to change a white (0) pixel to blue (1).

The handling for this in the last code execution is problematic. It does not consider diagonals. I’ll try a different approach to avoid potential errors like this. I will only change white (0) pixels to blue (1).

Revised Natural Language Program: Identify clusters of azure (8) pixels. For each cluster, locate the top-left-most white (0) pixel adjacent (including diagonals) to an azure (8) pixel in the cluster. If such a pixel exists, change its color to blue (1).

code_execution:

import numpy as np

def find_clusters(grid, color):
    # ... (same as before)

def find_top_left_white(grid, cluster):
    # Find all white pixels adjacent to azure pixels in the cluster
    candidates = []
    for r, c in cluster:
        for dr in [-1, 0, 1]:
            for dc in [-1, 0, 1]:
                if dr == 0 and dc == 0:
                    continue  # Skip the current pixel itself
                nr, nc = r + dr, c + dc
                if 0 <= nr < grid.shape[0] and 0 <= nc < grid.shape[1] and grid[nr, nc] == 0:
                    candidates.append((nr, nc))

    # If any candidates exist, return the top-left most one
    if candidates:
        return min(candidates, key=lambda x: (x[0], x[1]))
    else:
        return None

# Test with the test input grid
test_input_grid = np.array([[0, 0, 0, 0, 0, 8, 8], [8, 8, 0, 0, 0, 0, 8], [8, 0, 0, 0, 0, 0, 0], [0, 0, 0, 8, 0, 0, 0], [0, 0, 0, 8, 8, 0, 0], [0, 8, 0, 0, 0, 0, 0], [8, 8, 0, 0, 0, 0, 0]])

test_clusters = find_clusters(test_input_grid, 8)

# Construct the output grid
test_output_grid = test_input_grid.copy()
for cluster in test_clusters:
    top_left_white = find_top_left_white(test_input_grid, cluster)
    if top_left_white:
        test_output_grid[top_left_white] = 1

print(test_output_grid)

function_call: update_working_output_grid

[[0 0 0 0 0 8 8]
 [8 8 0 0 0 0 8]
 [1 0 0 0 0 0 0]
 [0 0 0 8 0 0 0]
 [0 0 0 8 8 0 0]
 [0 1 0 0 0 0 0]
 [1 8 0 0 0 0 0]]

update working grid


INSTRUCTIONS:

in this task you will make a function call to set pixels on the grid to achieve the solution

after you update the grid you will be presented with a copy to review

  • set_pixel: update one pixel at a time

  • set_range: update a rectangular subset of pixel

  • set_floodfill: update a contiguous region with a new color

  • submit: when the working grid meets your criteria call submit to check you solution

please call only one function per round so you can review the working grid