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#question1.pydef rose(n) :if n==0 :yield []else :for k in range(0,n) :for l in rose(k) :for r in rose(n-1-k) :yield [l]+[r]+[r]def start(n) :for x in rose(n) :print(x) #basically I am printing x for each rose(n) fileprint("starting program: \n")start(2) # here is where I call the start function
def Fibonacci(n):if n<0:print("Incorrect input")# First Fibonacci number is 0elif n==1:return 0# Second Fibonacci number is 1elif n==2:return 1else:return Fibonacci(n-1)+Fibonacci(n-2)# Driver Programprint(Fibonacci(9))
# Python program for implementation of Selection# Sortimport sysA = [64, 25, 12, 22, 11]# Traverse through all array elementsfor i in range(len(A)):# Find the minimum element in remaining# unsorted arraymin_idx = ifor j in range(i+1, len(A)):if A[min_idx] > A[j]:min_idx = j# Swap the found minimum element with# the first elementA[i], A[min_idx] = A[min_idx], A[i]# Driver code to test aboveprint ("Sorted array")for i in range(len(A)):print("%d" %A[i]),
from collections import defaultdictdef collect_dictionary(obj):inv_obj = defaultdict(list)for key, value in obj.items():inv_obj[value].append(key)return dict(inv_obj)ages = {'Peter': 10,'Isabel': 10,'Anna': 9,}collect_dictionary(ages) # { 10: ['Peter', 'Isabel'], 9: ['Anna'] }
def to_roman_numeral(num):lookup = [(1000, 'M'),(900, 'CM'),(500, 'D'),(400, 'CD'),(100, 'C'),(90, 'XC'),(50, 'L'),(40, 'XL'),(10, 'X'),(9, 'IX'),(5, 'V'),(4, 'IV'),(1, 'I'),]res = ''for (n, roman) in lookup:(d, num) = divmod(num, n)res += roman * dreturn resto_roman_numeral(3) # 'III'to_roman_numeral(11) # 'XI'to_roman_numeral(1998) # 'MCMXCVIII'
""" Rock Paper Scissors----------------------------------------"""import randomimport osimport reos.system('cls' if os.name=='nt' else 'clear')while (1 < 2):print "\n"print "Rock, Paper, Scissors - Shoot!"userChoice = raw_input("Choose your weapon [R]ock], [P]aper, or [S]cissors: ")if not re.match("[SsRrPp]", userChoice):print "Please choose a letter:"print "[R]ock, [S]cissors or [P]aper."continue// Echo the user's choiceprint "You chose: " + userChoicechoices = ['R', 'P', 'S']opponenetChoice = random.choice(choices)print "I chose: " + opponenetChoiceif opponenetChoice == str.upper(userChoice):print "Tie! "#if opponenetChoice == str("R") and str.upper(userChoice) == "P"elif opponenetChoice == 'R' and userChoice.upper() == 'S':print "Scissors beats rock, I win! "continueelif opponenetChoice == 'S' and userChoice.upper() == 'P':print "Scissors beats paper! I win! "continueelif opponenetChoice == 'P' and userChoice.upper() == 'R':print "Paper beat rock, I win! "continueelse:print "You win!"