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长度为n的入栈顺序的可能出栈顺序种数
2022-07-05 04:00:00 【诗与浪子】
import math
def pop_sequence_species(N):
return math.comb(2 * N, N) / (N + 1)
if __name__ == '__main__':
print(pop_sequence_species(3))
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