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from SoSe24.algodat.foundation import AlgoDatArray, AlgoDatValue, read_int_sequence, MinusInf |
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from time import perf_counter as pfc |
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def merge_sort(z: AlgoDatArray, storage: AlgoDatArray, left: int, right: int): |
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print(left, right) |
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if left == right: |
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return |
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mid = (left + right) // 2 |
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merge_sort(z, storage, left, mid) |
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merge_sort(z, storage, mid+1, right) |
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left_ptr = left |
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right_ptr = right |
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storage_ptr = left |
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print("left: ", end="") |
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for i in range(left, mid+1): |
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print(z[i], " ", end="") |
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print(" right: ", end="") |
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for i in range(mid+1, right+1): |
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print(z[i], " ", end="") |
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while left_ptr <= mid or right_ptr <= right: |
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if left_ptr <= mid and right_ptr <= right: |
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print("Beides ", z[left_ptr], " ", z[right_ptr]) |
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if z[left_ptr] < z[right_ptr]: |
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print(" Genommen: ", z[left_ptr]) |
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storage[storage_ptr] = z[left_ptr] |
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left_ptr += 1 |
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storage_ptr += 1 |
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else: |
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print(" Genommen: ", z[right_ptr]) |
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storage[storage_ptr] = z[right_ptr] |
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right_ptr += 1 |
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storage_ptr += 1 |
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elif left_ptr <= mid: |
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storage[storage_ptr] = z[left_ptr] |
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left_ptr += 1 |
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storage_ptr += 1 |
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else: |
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storage[storage_ptr] = z[right_ptr] |
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right_ptr += 1 |
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storage_ptr += 1 |
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for i in range(left, right+1): |
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z[i] = storage[i] |
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if __name__ == "__main__": |
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z = read_int_sequence("../../seq0.txt") |
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start = pfc() |
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storage = AlgoDatArray(z.size) |
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AlgoDatValue.summary() |
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merge_sort(z, storage, 0, z.size-1) |
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print(z) |
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print(f"Dauer: {pfc() - start:.4f}s") |
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AlgoDatValue.summary() |