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70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
"""
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MIT License
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Copyright (c) 2024 yuhari
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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"""
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# https://gist.github.com/harigro/28df9ec639f74f217473f85065acf9d8
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from typing import List, Dict
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def divide_array_to_graph(arr: List[int], base: int) -> Dict[int, List[int]]:
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"""
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Splits an array into smaller parts and returns them in a dictionary, simulating a graph
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structure where each part of the array is a node connected to other parts.
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Args:
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arr (List[int]): The array to be divided.
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base (int): The divisor that determines the number of parts.
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Returns:
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Dict[int, List[int]]: A dictionary representing the graph structure,
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where each key is a node and the value is a list of connected nodes.
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Example:
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>>> divide_array_to_graph(arr=[1, 2, 3, 4, 5, 6, 7, 8], base=2)
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{0: [1, 2], 1: [3, 4], 2: [5, 6], 3: [7, 8]}
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>>> divide_array_to_graph(arr=[1, 2, 3, 4, 5, 6, 7, 8], base=3)
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{0: [1, 2, 3, 4], 1: [5, 6, 7, 8]}
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"""
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length = len(arr)
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parts = len(arr) // base # Desired number of parts
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part_size = length // parts # Size of each part
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# Divide the array into smaller parts
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result = [arr[i * part_size : (i + 1) * part_size] for i in range(parts)]
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# Insert the result into a dictionary with keys from 0 to 3
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result_dict = {i: result[i] for i in range(parts)}
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return result_dict
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if __name__ == "__main__":
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# Example usage
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array = [1, 2, 3, 4, 5, 6, 7, 8]
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print(divide_array_to_graph(array, 2))
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import doctest
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doctest.testmod()
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