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Game of Life Next State Grid in Python

Compute the next generation of Conway's Game of Life from a 2D grid using the standard three rules with neighbor counting.

game-of-life grid cellular-automaton

Python

def next_state(grid):
    m, n = len(grid), len(grid[0])
    new = [[0] * n for _ in range(m)]
    for r in range(m):
        for c in range(n):
            total = 0
            for dr in (-1, 0, 1):
                for dc in (-1, 0, 1):
                    if dr == 0 and dc == 0:
                        continue
   …

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