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oplossingen extra oefeningen programmeren python dawynt dodona H7: More functions
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Oplossingen extra oefeningen dodona voor vak programmeren python van peter dawnyt ugent, reeks 7: geavanceerde functies
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H7: MORE ABOUT FUNCTIONS & MODULESDawkins’ wezel
from random import choice
def tness(string1,string2):
assert len(string1) == len(string2), "strings moeten even lang zijn"
counter = 0
for i in range(len(string1)):
if string1[i] == string2[i]:
counter += 1
return counter
def mutatie(string, mutaties= 1):
#mutaties = optionele parameter met default waarde 1
n = len(string)
assert int(mutaties) <= n, "ongeldig aantal mutaties"
alfabet =
["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","
Y","Z"," "]
posities_vervangen = []
while len(posities_vervangen) != mutaties:
keuze = choice(range(n))
if keuze not in posities_vervangen:
posities_vervangen.append(keuze)
antwoord = ""
for i in range(n):
if i in posities_vervangen:
vervangen = string[i]
if vervangen in alfabet:
alfabet.remove(vervangen)
antwoord += choice(alfabet)
else:
antwoord += string[i]
return antwoord
def crossover(string1,string2, punt= None):
n = len(string1)
assert len(string1) == len(string2), "strings moeten even lang zijn"
if punt is None:
punt = choice(range(1,n))
assert 0 < punt < n, "ongeldig crossoverpunt"
string1_deel2 = string1[punt:]
string2_deel2 = string2[punt:]
string1_deel1 = string1[:punt]
string2_deel1 = string2[:punt]
woord1 = string1_deel1 + string2_deel2
woord2 = string2_deel1 + string1_deel2
return (woord1,woord2)
Obscure feestdagen
fi
, import datetime
from datetime import date,timedelta
def pidag(datum):
dag = datum.day
maand = datum.month
if dag == 14 and maand == 3:
return True
return False
def vierkantsworteldag(datum):
jaar = datum.year
laatste2 = int(str(jaar)[2:])
dag = datum.day
maand = datum.month
if maand ** 2 == laatste2 and dag ** 2 == laatste2:
return True
return False
def liftdag(datum):
maand = datum.month
weekdag = datum.weekday()
dag = datum.day
if maand == 7 and weekdag == 4 and dag > 24:
return True
return False
def volgende_feestdag(feestdag,datum=date.today(), zelf=False):
if zelf is False:
datum += timedelta(1)
while not feestdag(datum):
datum += timedelta(1)
return datum
Five up
def is_geldige_kaart(kaart):
if isinstance(kaart,str) is False:
return False
kleuren = "SCDH"
rangen = "2345678910JQKA"
kleur = kaart[-1]
rang = kaart[:-1]
if rang.isdigit():
if kleur.upper() in kleuren and rang in rangen:
return True
else:
return False
elif rang.isupper() and kleur.isupper():
if kleur in kleuren and rang in rangen:
return True
else:
return False
elif rang.islower() and kleur.islower():
if kleur in kleuren.lower() and rang in rangen.lower():
return True
else:
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