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Oppgave 1 - Opprette dictionaries

Code Block
languagepython
kokebok = {'pasta carbonara':['fløte','pasta','bacon'], 'sopp risotto':['sopp','ris','fløte'], 'pasta bolognese':['pasta','kjøttdeig','tomatsaus']}

Oppgave 2 - Hente, slette og legge til verdier fra en dictionary

Code Block
languagepython
#a
print(kokebok.get('pasta carbonara'))

#b
kokebok['kyllingsalat'] = ['kylling','tomat','agurk','salat']

#c
if 'sopp risotto' in kokebok:
    print 'sopp risotto finnes i kokeboken'
else:
    print 'beklager, opp risotto finnes ikke i kokeboken'

#d
del kokebok['pasta bolognese']

Oppgave 3 - Iterere over elementer i en dictionary

Code Block
languagepython
for rett in kokebok:
    print rett + ' inneholder ' + str(kokebok.get(rett)) 

Oppgave 4 - Endre verdier i en dictionary

Code Block
languagepython
for rett in kokebok:
    kokebok[rett].append('salt')
    kokebok[rett].append('pepper')

Oppgave 5 - Nyttige dictionaries metoder

Code Block
languagepython
print(kokebok.keys())
print(kokebok.values())
kokebok.clear()

Oppgave 6 - Enkle sett-operasjoner

Code Block
languagepython
#a
primtall = set([2,3,5,7])

#b
print(len(primtall))

#c
primtall.add(11)
primtall.add(13)

#d
primtall.discard(min(primtall))

#e
for tall in primtall:
    print(tall)

Oppgave 7 - Union og snitt av sett

Code Block
languagepython
#a
oddetall = set([1,3,5,7,9,11,13])

#b
print(oddetall.intersection(primtall))

#c
print(oddetall.union(primtall))

#d
print(oddetall.difference(primtall))

#e
print(primtall.issubset(primtall))

Oppgave 8 - Fakultet

Code Block
languagepython
def fakultet(n):
    if n == 0:
        return 1
    else:
        return n * fakultet(n - 1)

Oppgave 9 - Fibonacci

Code Block
languagepython
def fib(n):
    if n == 0:
        return 0
    elif n == 1:
        return 1
    else:
        return fib(n-1) + fib(n-2)

Oppgave 10 - Pascals trekant

Code Block
languagepython
def pascal(n):
    if n == 1:
        return [1]
    else:
        linje = [1]
        forrige_linje = pascal(n-1)
        for i in range(len(forrige_linje)-1):
            line.append(forrige_linje[i] + forrige_linje[i+1])
        linje += [1]
    return linje

Oppgave 11 - Palindrom

Code Block
languagepython
def palindromTest(S):
  if len(N) == 1 or len(N) == 0:
    return True
  else:
    if N[0] == N[-1] and palindromTest(N[1:-1]):
      return True
    else:
      return False

Oppgave 12 - Minste element

Code Block
languagepython
def minElement(L,n):
  if n == 1:
    return L[0]
  else:
    min = minElement(L[1:],n-1)
    if L[0] < min:
      return L[0]
    else
      return min

Oppgave 13 - Største element

Code Block
languagepython
def maxElement(L):
  if len(L) == 1:
    return L[0]
  else:
    max = maxElement(L[1:])
    if L[0] > max:
      return L[0]
    else
      return max

Oppgave 14 - Exponent

Code Block
languagepython
def power(x, n): 
 if n < 1:
     return 1
return power(x, n-1)