def triangles(): L = [1] while True: yield L S1 = [0] + L S2 = L + [0] sum = [] n = len(S1) for n in range(n): sum.append( S1[n] + S2[n]) L = sum
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似水年华_
def triangles(): L = [1] while True: yield L S1 = [0] + L S2 = L + [0] sum = [] n = len(S1) for n in range(n): sum.append( S1[n] + S2[n]) L = sum