28 lines
581 B
Python
28 lines
581 B
Python
import random
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def factorial(n):
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result = 1
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for i in range(1, n + 1):
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result *= i
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return result
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def travel(a, b):
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if a == b:
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return 1
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ax, ay = a
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bx, by = b
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if ax > bx or ay > by:
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return 0
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return sum([travel((ax + 1, ay), b), travel((ax, ay + 1), b)])
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def travel_compute(a, b):
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bx, by = b
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return int(factorial(bx + by) / (factorial(bx) * factorial(by)))
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a = (0, 0)
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b = (random.randint(1, 10), random.randint(1, 10))
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print("Travelling to {}, {}".format(b[0], b[1]))
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print(travel(a, b))
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print(travel_compute(a, b))
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