RosettaCodeData/Task/Ackermann-function/Python/ackermann-function-2.py
2015-02-20 00:35:01 -05:00

7 lines
152 B
Python

def ack2(M, N):
if M == 0:
return N + 1
elif N == 0:
return ack2(M - 1, 1)
else:
return ack2(M - 1, ack2(M, N - 1))