Created
July 12, 2023 04:24
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| def parity(p): | |
| return sum( | |
| 1 | |
| for (x, px) in enumerate(p) | |
| for (y, py) in enumerate(p) | |
| if x < y and px > py | |
| ) % 2 == 0 | |
| print(parity([1,2,3])) | |
| print(parity([1,2,3,4])) | |
| print(parity([3,1,2,4])) |
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