def linear_search(arr, target): for i in range(len(arr)): if arr[i] == target: return True return False arr1 = [1, 4, 7, 8, 2, 3] print(linear_search(arr1, 30)) def exponent(base, power): if power == 0: return 1 return base * exponent(base, power-1) print(exponent(4, 3)) def max(arr): max = arr[0] for i in range(len(arr)): if arr[i] > max: max = arr[i] return max arr2 = [1, 3, 4, 20, 4, 5, 60] print(max(arr2)) def palindrome(word): for i in range(int(len(word)/2)): if word[i] != word[len(word)-i-1]: return False return True print(palindrome("anna")) def first_and_last(arr, target): start = -1 found = False for i in range(len(arr)): if arr[i] == target and not(found): start = i found = True if found and arr[i] != target: return [start, i-1] if found and arr[i] == target and i == len(arr)-1: return [start, i] return [-1, -1] arr3 = [1, 1, 1, 2, 2, 3, 4, 5, 5, 5] print(first_and_last(arr3, 50)) def anagram(word1, word2): if len(word1) != len(word2): return False first, second = {}, {} for i in range(len(word1)): if first.get(word1[i]): first[word1[i]] +=1 else: first[word1[i]] = 1 if second.get(word1[i]): second[word1[i]] +=1 else: second[word1[i]] = 1 return first == second print(anagram("gardenn", "danger")) def anagram2(word1, word2): if len(word1) != len(word2): return False res = [] for i in range(len(word1)): found = False for j in range(len(res)): if res[j][0] == word1[i]: res[j][1] += 1 found = True break if not(found): res.append([word1[i], 1]) for i in range(len(word2)): found = False for j in range(len(res)): if res[j][0] == word2[i]: res[j][1] -= 1 found = True break if not(found): res.append([word2[i], 1]) for e in res: if e[1] != 0: return False return True print(anagram2("garden", "danger"))

#1. Write a Python program that asks the user to enter their age. Based on the entered age, print the following messages: #If the age is less than 18, print "You are a minor." #If the age is between 18 and 65 (inclusive), print "You are an adult." #If the age is greater than 65, print "You are a senior citizen." #Once printed the option, tell the user when they will be in that specific age group. For example, if a user is 16, you will print out that the user will be an adult in 2 years. age = int(input("What is your age:")) if age < 18 : print("You are a minor") ge = 18 - age print("In " + str(ge) + " years you will be an adult") elif age < 65 and age >= 18 : print("You are an adult") e = 65 - age print("In " + str(e) + " years you will be a senior") elif age >= 65: print("You are a senior") #2. Write a Python program that asks the user to enter a sentence. The program should count and print the number of vowels (a, e, i, o, u) in the sentence.Once counted, replace each vowel with an underscore. #If the value of n is a vowel, add _ to sen. If the value of n is not a vowel, add n to sen. from replace import replace sent = str(input("Enter type sentence (please type in lowercase)//")) num = 0 a = "a" e = "e" i = "i" o = "o" u = "u" for n in sent: if n == a or n == e or n == i or n == o or n == u : num = num + 1 print (num) vow = ["a", "e", "i", "o", "u"] for n in sent: if n == a or n == e or n == i or n == o or n == u : print(n) for r in vow: sent = sent.replace(r, "_") print(sent) #3. Write a Python program that asks the user to enter a word and then prints the word in reverse order. reverse = "" word = str(input("Enter a word: ")) for n in word: reverse = n + reverse print(reverse)