Python Programming: An Introduction to Computer Science, 3rd Ed.
3rd Edition
ISBN: 9781590282755
Author: John Zelle
Publisher: Franklin, Beedle & Associates
expand_more
expand_more
format_list_bulleted
Question
Chapter 6, Problem 13PE
Program Plan Intro
Program plan:
- The function named “toNumbers()” is defined and inside the “toNumbers()”,
- Initialize the for loop that ranges till the length of the array
- The variable “strList[]” stores the integer value of the string values in the array.
- Return the value stored in the variable “strList”
- Initialize the for loop that ranges till the length of the array
- In the “test()” function,
- Declare an array variable and initialize it with an array.
- Call the method named “toNumbers()” to get the integer value of the string.
- Print the output value stored in the variable “z”.
- Call the function “test()”.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
3. String
(a)
Write a Python function that accepts a string s and an integer n with a single
digit (i.e., 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9) as its arguments, and returns a new string that
replaces every digit n found in s by a new digit that equals to (n + 1) %10. The function
returns an empty string if n is not a single digit integer or is negative.
COMP132 Assignment #2
replace_string("He330", 3)-> "He440"
"He331"
replace_string("He330",0)->
replace_string("He330",-4)
replace_string("He330",
->
12)->
11 11
11 11
(b)
Write a Python function that accepts a string as the argument, moves the first
3 characters of the string to the end, and prints it out. If the length of the string is less than
3, your function should print an error message.
move_string ("Hello") ->loHel
move_string ("Hi, My name is Mark.") -> My name is Mark. Hi,
move_string ("Hi")->Invalid String
Question >
Not complete
Marked out of
1.50
Flag question
Previous page
Write a recursive function named get_palindromes (words) that takes a list of words as a parameter. The function should return a list of all the palindromes in the list. The function returns an
empty list if there are no palindromes in the list or if the list is empty. For example, if the list is ["racecar", "hello", "noon", "goodbye"], the function should return ["racecar", "noon"].
A palindrome is a word that is spelled the same forwards and backwards.
Note: The get_palindromes() function has to be recursive; you are not allowed to use loops to solve this problem.
For example:
Test
words = ["racecar", "hello", "noon", "goodbye", "test", 'aibohphobia'] ['racecar', 'noon', 'aibohphobia']
print (get_palindromes (words))
print (get_palindromes ([]))
print (get_palindromes (['this', 'is', 'test']))
Answer: (penalty regime: 0, 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 %)
Result
Precheck Check
[]
[]
Next page
String Pair
// Problem Description
// One person hands over the list of digits to Mr. String, But Mr. String understands only strings. Within strings also he understands only vowels. Mr. String needs your help to find the total number of pairs which add up to a certain digit D.
// The rules to calculate digit D are as follow
// Take all digits and convert them into their textual representation
// Next, sum up the number of vowels i.e. {a, e, i, o, u} from all textual representation
// This sum is digit D
// Now, once digit D is known find out all unordered pairs of numbers in input whose sum is equal to D. Refer example section for better understanding.
// Constraints
// 1 <= N <= 100
// 1 <= value of each element in second line of input <= 100
// Number 100, if and when it appears in input should be converted to textual representation as hundred and not as one hundred. Hence number…
Chapter 6 Solutions
Python Programming: An Introduction to Computer Science, 3rd Ed.
Ch. 6 - Prob. 1TFCh. 6 - Prob. 2TFCh. 6 - Prob. 3TFCh. 6 - Prob. 4TFCh. 6 - Prob. 5TFCh. 6 - Prob. 6TFCh. 6 - Prob. 7TFCh. 6 - Prob. 8TFCh. 6 - Prob. 9TFCh. 6 - Prob. 10TF
Ch. 6 - Prob. 1MCCh. 6 - Prob. 2MCCh. 6 - Prob. 3MCCh. 6 - Prob. 4MCCh. 6 - Prob. 5MCCh. 6 - Prob. 6MCCh. 6 - Prob. 7MCCh. 6 - Prob. 8MCCh. 6 - Prob. 9MCCh. 6 - Prob. 10MCCh. 6 - Prob. 1DCh. 6 - Prob. 2DCh. 6 - Prob. 3DCh. 6 - Prob. 4DCh. 6 - Prob. 5DCh. 6 - Prob. 1PECh. 6 - Prob. 2PECh. 6 - Prob. 3PECh. 6 - Prob. 4PECh. 6 - Prob. 5PECh. 6 - Prob. 6PECh. 6 - Prob. 7PECh. 6 - Prob. 8PECh. 6 - Prob. 9PECh. 6 - Prob. 10PECh. 6 - Prob. 11PECh. 6 - Prob. 12PECh. 6 - Prob. 13PECh. 6 - Prob. 14PECh. 6 - Prob. 16PECh. 6 - Prob. 17PE
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- python question: Write a code that takes a sentence as an argument and places its words in a list of words in alphabetical order If the sentence is: "Am I good" The function returns: ['Am', 'I', 'good']arrow_forwardExercise Objectives Problem Description Write a program that reads a string and mirrors it around the middle character. Examples: abcd becomes cdab. abcde becomes deCab AhmadAlami becomes AlamiAhmad Page 1 of 2 Your program must: • Implement function void reflect (char* str) which receives a string (array of characters) and mirrors it. This function does not print anything. • Read from the user (in main()) a string and then print the string after calling function reflect(). • Use pointers and pointer arithmetic only. The use of array notation and/or functions from the string.h library is not allowed.arrow_forwardPython please! Generalized image blender function Create a function blend images() which takes multiple RGB images as an input, and outputs a blended image. The function should accept following parameters 1. image list- A Python list of 3D arrays where each 3D array corresponds to an RGB image 2. weight list-A Python list of float values between (0, 1) corresponding to the pixel weight to be given to each image-e.g. [0.2, 0.3, 0.1, 0.4] for 4 images. The sum of the weights should be equal to 1. Test your function against a provided list of 5 images with following weight lists (i.e. 2 blended images) [0.2, 0.2, 0.2, 0.2, 0.2]- blend all 5 images [0.2, 0.3, 0.5]- blend first 3 images NOTE: DO NOT USE pre-existing image blending functions.arrow_forward
- 1.d) In Python, define a function that takes list as a parameter and returns the count of all single-digit numbers in the list.arrow_forward# dates and times with lubridateinstall.packages("nycflights13") library(tidyverse)library(lubridate)library(nycflights13) Qustion: Create a function called date_quarter that accepts any vector of dates as its input and then returns the corresponding quarter for each date Examples: “2019-01-01” should return “Q1” “2011-05-23” should return “Q2” “1978-09-30” should return “Q3” Etc. Use the flight's data set from the nycflights13 package to test your function by creating a new column called quarter using mutate()arrow_forwardMultiples of ten in a list (python) Write a program that reads a list of integers, and outputs whether the list contains all multiples of 10, no multiples of 10, or mixed values. Define a function named is_list_mult10 that takes a list as a parameter, and returns a boolean that represents whether the list contains all multiples of ten. Define a function named is_list_no_mult10 that takes a list as a parameter and returns a boolean that represents whether the list contains no multiples of ten. Then, write a main program that takes an integer, representing the size of the list, followed by the list values. The first integer is not in the list. Ex: If the input is: 5 20 40 60 80 100 the output is: all multiples of 10 Ex: If the input is: 5 11 -32 53 -74 95 the output is: no multiples of 10 Ex: If the input is: 5 10 25 30 40 55 the output is: mixed values The program must define and call the following two functions. is_list_mult10() returns true if all integers in the list are multiples…arrow_forward
- Ex1: a) Write a function for the user to enter a positive integer n with a value between 10 and 1000. If entered correctly, the function generates a list containing n random values that do not overlap between 1 and 5000 and the function returns the newly created list. Conversely, if entered incorrectly, the program will ask to re-enter until it is correct. Cases where n is considered incorrect:(i)- If the user enters a non-integer data type (like string, float, bool, ...)The program will display the error message 'Must enter a positive integer. Requires re-entry'.(ii)- If the input value is of the correct integer data type but the value is not in the range10 to 1000, the program gives the error 'Only values between 10 and 1000. Re-enter required'.Installation requirements: must use the try ... except statement to handle possible exceptionsin the program. b) Write a function that lists the amicable numbers in the list just created in a) (If there are no amicable numbers in the list,…arrow_forwardpalindromes Write a function palindromes that accepts a sentence as an argument. The function then returns a list of all words in the sentence that are palindromes, that is they are the same forwards and backwards. Guidelines: • punctuation characters .,;!? should be ignored • the palindrome check should not depend on case Sample usage: >>> palindromes ("Hey Anna, would you prefer to ride in a kayak or a racecar?") ['Anna', 'a', 'kayak', 'a', 'racecar'] >>> palindromes ("Able was I ere I saw Elba.") ['I', 'ere', 'I'] >>> palindromes ("Otto, go see Tacocat at the Civic Center, their guitar solos are Wow!") ['Otto', 'Tacocat', 'Civic', 'solos', 'wow'] >>> palindromes ("Otto, go see Tacocat at the Civic Center, their guitar solos are wow!")==['Otto', 'Tacocat', 'Civic', 'solos', 'wow'] Truearrow_forwardComplete the code for the following function so it matches its documentation: def doubleList(numberList):''' For each of the numbers in the list numberList, print a linecontaining twice the original number. For example,doubleList([3, 1, 5]) would print6210arrow_forward
- def swap_text(text): Backstory: Luffy wants to organize a surprise party for his friend Zoro and he wants to send a message to his friends, but he wants to encrypt the message so that Zoro cannot easily read it. The message is encrypted by exchanging pairs of characters. Description: This function gets a text (string) and creates a new text by swapping each pair of characters, and returns a string with the modified text. For example, suppose the text has 6 characters, then it swaps the first with the second, the third with the fourth and the fifth with the sixth character. Parameters: text is a string (its length could be 0)Return value: A string that is generated by swapping pairs of characters. Note that if the Examples: swap_text ("hello") swap_text ("Party for Zoro!") swap_text ("") def which_day(numbers): → 'ehllo'→ 'aPtr yof roZor!' → '' length of the text is odd, the last character remains in the same position.arrow_forwardCommon Time Zones Function Name: commonTimeZones() Parameters: code1( str ), code2( str) Returns: list of common time zones ( list ) Description: You and your friend live in different countries, but you figure there's a chance that both of you might be in the same time zone. Thus, you want to find out the list of possible time zones that you and your friend could both be in. Given two country codes, write a function that returns a list of the time zones the two countries have in common. Be sure not to include any duplicate time zones. If the two country codes do not have any common time zones, return the string 'No Common Time Zones' instead. Note: You can assume that the codes will always be valid. example test cases: >>> commonTimeZones('can', 'usa') [UTC-08:00', 'UTC-07:00', 'UTC-06:00', 'UTC-05:00', 'UTC-04:00] >>> commonTimeZones('rus', 'chn') [UTC+08:00] For this assignment, use the REST countries API (https://restcountries.com/#api-endpoints-v2). For all of your requests, make…arrow_forwardComputer Science C++ Write a program that: Gets a character array (C-string) using cin.get to allow blanks in the C-string Prints the C-string (what they input) Prints the length (number of characters) in the C-stringarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
Introduction to Linked List; Author: Neso Academy;https://www.youtube.com/watch?v=R9PTBwOzceo;License: Standard YouTube License, CC-BY
Linked list | Single, Double & Circular | Data Structures | Lec-23 | Bhanu Priya; Author: Education 4u;https://www.youtube.com/watch?v=IiL_wwFIuaA;License: Standard Youtube License