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my_list = ["blue", "red", "green"]#1- Using sort or srted directly or with specifc keysmy_list.sort() #sorts alphabetically or in an ascending order for numeric datamy_list = sorted(my_list, key=len) #sorts the list based on the length of the strings from shortest to longest.# You can use reverse=True to flip the order#2- Using locale and functoolsimport localefrom functools import cmp_to_keymy_list = sorted(my_list, key=cmp_to_key(locale.strcoll))
def key_of_min(d):return min(d, key = d.get)key_of_min({'a':4, 'b':0, 'c':13}) # b
import itertoolsdef compute_permutations(string):# Generate all permutations of the stringpermutations = itertools.permutations(string)# Convert each permutation tuple to a stringpermutations = [''.join(permutation) for permutation in permutations]return permutations# Prompt the user for a stringstring = input("Enter a string: ")# Compute permutationspermutations = compute_permutations(string)# Display the permutationsprint("Permutations:")for permutation in permutations:print(permutation)
import stringdef caesar(text, shift, alphabets):def shift_alphabet(alphabet):return alphabet[shift:] + alphabet[:shift]shifted_alphabets = tuple(map(shift_alphabet, alphabets))final_alphabet = "".join(alphabets)final_shifted_alphabet = "".join(shifted_alphabets)table = str.maketrans(final_alphabet, final_shifted_alphabet)return text.translate(table)plain_text = "Hey Skrome, welcome to CodeCatch"print(caesar(plain_text, 8, [string.ascii_lowercase, string.ascii_uppercase, string.punctuation]))
""" Binary Search Algorithm----------------------------------------"""#iterative implementation of binary search in Pythondef binary_search(a_list, item):"""Performs iterative binary search to find the position of an integer in a given, sorted, list.a_list -- sorted list of integersitem -- integer you are searching for the position of"""first = 0last = len(a_list) - 1while first <= last:i = (first + last) / 2if a_list[i] == item:return ' found at position '.format(item=item, i=i)elif a_list[i] > item:last = i - 1elif a_list[i] < item:first = i + 1else:return ' not found in the list'.format(item=item)#recursive implementation of binary search in Pythondef binary_search_recursive(a_list, item):"""Performs recursive binary search of an integer in a given, sorted, list.a_list -- sorted list of integersitem -- integer you are searching for the position of"""first = 0last = len(a_list) - 1if len(a_list) == 0:return ' was not found in the list'.format(item=item)else:i = (first + last) // 2if item == a_list[i]:return ' found'.format(item=item)else:if a_list[i] < item:return binary_search_recursive(a_list[i+1:], item)else:return binary_search_recursive(a_list[:i], item)
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))