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for i in range (start,slutt):
print print iMan bruker helst for løkker når man vet hvilke verdier man skal iterere over. Hvis dette er ukjent, for eksempel ved "fortsett så lenge brukerinput ikke er 0", da må man benytte while løkke.
Code Block language python i = 0 while (i<6): print(i) i++=1
Oppgave 2 - For-løkke
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# printer tekst 20 ganger for i in range(0,20): print("Bolton Wanderers!") |
Oppgave 3 - While-løkke
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fromtall random import randint ikkesyv = True while (ikkesyv): x = randint(0,10) if (x != 7)= int(input("Skriv inn et tall: ")) print(tall) while tall!=7: tall print(x) else:= int(input("Skriv inn et tall: ")) ikkesyv = Falseprint(tall) |
Oppgave 4 For-løkker
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Code Block codelanguage py listliste = [-4,5,3,9,3,-3,-8,8] for i in range(0,len(listliste)): if (listliste[i]>=0): listliste[i] = 1 else: listliste[i] = 0 print(listliste)
Code Block codelanguage py listliste = [-4,5,3,9,3,-3,-8,8] sumsumm = 0 for i in range (0,len(listliste)): sumsumm+=listliste[i] print(summ) print(sum #alternativt liste = [-4,5,3,9,3,-3,-8,8] summ = 0 for el in liste: summ += el print(summ)
Oppgave 5 - Passord
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while True: passord1 = input('Skriv inn ditt passord--> ') passord2 = input('Skriv inn ditt passord på nytt--> ') if passord1 == passord2: print('Passordene er like.') elif len(passord1) != len(passord2): print('Passordene har ulik lengde!') # Sammenligner ASCII-verdi. a har en mindre verdi enn b i ASCII-tabellen. a = 97 og b = 98 f. eks. elif passord1 > passord2: print('Passord 2 kommer før passord 1 i alfabetet') else: print('Passord 1 kommer før passord 2 i alfabetet') |
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from random import randint while True: tall1 = randint(1,10) tall2 = randint(1,10) produkt = tall1 * tall2 print(tall1,'*',tall2,'=',produkt) if produkt >= 70: break #alternativt from random import randint prod = 0 while prod < 70: x = randint(1,10) y = randint(1,10) prod = x*y print(x,"*",y,'=',prod) |
Oppgave 7 - Speedometer
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kmh = 10def to_mph(kmt): return kmt/1.6 for kmhkmt in range(10,110111,10): kmhToMph = kmh / 1.6 print(kmhkmt,'"km/t =',kmhToMph,'mph'",to_mph(kmt),"mph") |
Oppgave 8 - Doble for-løkker
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Code Block codelanguage py matrix = [[1,3,-3,5,23],[23,1,34,13,32],[33,67,64,5,-9],[46,-6,6,64,8],[2,3,19,12,-4]]
Code Block codelanguage py matrix = [[1,3,-3,5,23],[23,1,34,13,32],[33,67,64,5,-9],[46,-6,6,64,8],[2,3,19,12,-4]] for k in range (0,len(matrix)): for t in range (0,len(matrix[k])): if (matrix[k][t]<0): matrix[k][t]*= -1 print(matrix)
Code Block language python matrix = [[1,3,-3,5,23],[23,1,34,13,32],[33,67,64,5,-9],[46,-6,6,64,8],[2,3,19,12,-4]] maxmaks = -float('Inf') for i in range(0,len(matrix)): for j in range(0,len(matrix[i])): if (matrix[i][j] > maxmaks): maxmaks = matrix[i][j] print(maxmaks)
Oppgave 9 - Badekaret
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capacity = 20 currentLevel = 5 while currentLevel < capacity: print('Badekaret har', currentLevel, 'liter vann.') currentLevel += 1 print('Badekaret er fullt.') |
Oppgave 10 - Sum av gangetabellen
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summ = 0 for i in range(1,11): for j in range(1,11): print('Current water level is', currentLevel, 'liters.') print('The bath is full and contains', currentLevel, 'litres.') |
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summ += i * j
print(summ) |
Oppgave 11 - Stigende sekvenser
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import sys
j = 1
for i in range(1,11):
k = 1
while k <= j:
sys.stdout.write(str(k) + ' ')
k += 1
i += 1
j += 1
print() |
Oppgave 12 - Sjakkbrett
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def checkColorOfChessboard(x,y): # we define a chessboard using nested arrays # b means black, and w means white board = [['w','b','w','b','w','b','w','b'], ['b','w','b','w','b','w','b','w'], ['w','b','w','b','w','b','w','b'], ['b','w','b','w','b','w','b','w'], ['w','b','w','b','w','b','w','b'], ['b','w','b','w','b','w','b','w'], ['w','b','w','b','w','b','w','b'], ['b','w','b','w','b','w','b','w'], ] x2 = x8 - 1x y2 = y - 1 if board[x2][y2] == 'w': print('Rute',str(x) + ','+ str(y),'er hvit') else: print('Rute',str(x) + ','+ str(y),'er svart') for x in range(1,9): for y in range(1,9): checkColorOfChessboard(x,y) |
Oppgave 11 - Sum av gangetabellen
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sum = 0 for i in range(1,11): for j in range(1,11): #alternativ løsning: def chess_board(x,y): if not (0<x<9 and 0<y<9): return sum += i * j print(sum) |
Oppgave 12 - Stigende sekvenser
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import sys j = 1 for i in range(1,11)"Ugyldig input" if x%2==1: if y%2==1: k = 1 while k <= j:return "svart" sys.stdout.write(str(k) + ' ') return "hvit" if y%2==1: k += 1 return "hvit" return "svart" for i +=in range(1,9): for j +=in range(1,9): print("Rute",str(i)+','+str() |
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j),"er",chess_board(i,j)) |