Answered: # For example, if you want to add a…

# For example, if you want to add a colon (:) after every character in the string "Python" you can use the following code. print(":".join("Python"))

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Description This homework is in two parts. Please upload your file submissions only after you have attempted both parts. Part A - One Dimensional (1D) Arrays: Answer any one of the following using a flowchart/pseudocode: 1. Hamming numbers are also known as ugly numbers and also 5-smooth numbers (numbers whose prime divisors are less or equal to 5). Hamming numbers are numbers of the form H = 2i x 3j x 5k where i, j, k 2 2 0 Create a 1D array. The array size is provided by the user at run time. Populate the array with Hamming numbers The first few numbers of this sequence are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60..
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(Intro to Java) Pls answer asap Write Answers Neatly Thanks
text file 80 1 2 3 100 100 100 1001 0 2 100 3 4 100 1002 2 0 4 4 100 5 1003 100 4 0 100 100 4 100100 3 4 100 0 3 3 3100 4 100 100 3 0 100 1100 100 5 4 3 100 0 2100 100 100 100 3 1 2 0 My code below. I am getting an error when trying to create my adjacency matrix. i dont know what i am doing wrong def readMatrix(inputfilename): ''' Returns a two-dimentional array created from the data in the given file. Pre: 'inputfilename' is the name of a text file whose first row contains the number of vertices in a graph and whose subsequent rows contain the rows of the adjacency matrix of the graph. ''' # Open the file f = open(inputfilename, 'r') # Read the number of vertices from the first line of the file n = int(f.readline().strip()) # Read the rest of the file stripping off the newline characters and splitting it into # a list of intger values rest = f.read().strip().split() # Create the adjacency matrix adjMat = []…
•is Valid Phone Number(): ReturnsTrue if the provided phone number (represented as a string) is cor-rectly formatted, otherwiseFalse. To be considered correctly formatted, phone numbers must bewritten as###-###-####, where#is a digit between 0 and 9 .•validatePhoneBook(): A phone book is a list where each entry is a phone book record (represented asa dictionary; see below for more details). This function checks each phone book record in the phonebook for correctly formatted phone numbers.A phone book record is a dictionary which initially has two keys: the key"name"mapped to thecontact’s name (string) and the key"phone number"mapped to that contact’s phone number (alsoa string).validatePhoneBook()adds a new key"valid"to the record with the valueTrueif the phonenumber is formatted correctly, otherwiseFalse. 1. Write white-box and black-box tests for the function is ValidPhoneNumber(). You should do this with-out Python, either on paper, or in a simple document. Don’t worry about…
Create an array of three string values that the fullName variable will use as a point of reference. Make an initialization list for the array using string values for the first, middle, and last names.
Create an array of three string values that the fullName variable will use as a point of reference. Make an initialization list for the array using string values for the first, middle, and last names.
please code in python regular expression In some web forms, users must enter a phone number, and some of these aggravate users byaccepting only a specific format. You have been hired to write a program that reads U.S. phone numbers with the three-digit area and seven-digit local codes accepted as ten digits, or separated into blocks using hyphens or spaces, and with the area code optionally enclosed in parentheses. For example, all of these are valid: 555-123-1234, (555) 1234567, (555) 123 1234, and 5551234567. Read the phone numbers from user input and for each one echo the number in the form “(999) 999 9999” or report an error for any that are invalid, or that don’t have exactly ten digits.