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21 lines
544 B
Python
21 lines
544 B
Python
# tady budeme resit faktorial rekurzivne
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# matematicka definice :
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#f(0) = 1
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#f(n) = n * f(n - 1)
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# takze vidime rekurzi - muzeme vyuzit
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def f(n):
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if n == 0: # f(0) = 1
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return 1
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# tady nepotrebujeme else, jelikoz v predchozim
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# if-u je return
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return n * f(n - 1) # f(n) = n * f(n - 1)
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print(f(3)) # f(3) = 6
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# f(3) = 3 * f(2) = 3 * 2 * f(1) = 3 * 2 * 1 * f(0) = 3 * 2 * 1 * 1 = 6
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print(f(100)) # je to celkem v pohode, az na to ze python neni uplne
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# dobrej pokud jde o rekurzi
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# zkuste treba co se stane kdyz udelate :
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#print(f(1000))
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