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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Combinations-and-permutations/Python/combinations-and-permutations.py Normal file
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from __future__ import print_function
from scipy.misc import factorial as fact
from scipy.misc import comb
def perm(N, k, exact=0):
return comb(N, k, exact) * fact(k, exact)
exact=True
print('Sample Perms 1..12')
for N in range(1, 13):
k = max(N-2, 1)
print('%iP%i =' % (N, k), perm(N, k, exact), end=', ' if N % 5 else '\n')
print('\n\nSample Combs 10..60')
for N in range(10, 61, 10):
k = N-2
print('%iC%i =' % (N, k), comb(N, k, exact), end=', ' if N % 50 else '\n')
exact=False
print('\n\nSample Perms 5..1500 Using FP approximations')
for N in [5, 15, 150, 1500, 15000]:
k = N-2
print('%iP%i =' % (N, k), perm(N, k, exact))
print('\nSample Combs 100..1000 Using FP approximations')
for N in range(100, 1001, 100):
k = N-2
print('%iC%i =' % (N, k), comb(N, k, exact))