Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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1. Word Garbler Write a python program that inputs a string from the user, then outputs a garbled version of the original string; i.e. it outputs a string with the same characters as the original string except that the characters are randomly mixed up. For example, given the string "Hello" it may printout "eHoll" or "loHel". You must use functions in your solution. 2. Doubloons A string is said to be a doubloon if every letter that appears in the string appears exactly twice. For example, the following strings are all doubloons: abba, anna, appall, appearer, appeases, arraigning, beriberi, bilabial, boob, caucasus, coco, dada, deed, emmett, hannah, horseshoer, intestines, isis, mama, mimi, murmur, noon, otto, papa, peep, reappear, redder, sees, shanghaiings, toto Write a python program that defines and uses a function is Doubloon (s) that returns a True if the string s is a doubloon or False otherwise. Input a string from the user, then output a message specifying if the input string is a doubloon or not. 3. Twin Primes A prime number is any integer greater than 1 that is divisible (without remainder) by only one and itself. Twin primes are consecutive odd numbers both of which are prime numbers. Write a python program which inputs two positive integers A and B from the user, then outputs all the twin primes in the range from A to B, both inclusive. Your program must define and utilize a function is Prime (n) that returns True if n is prime or False otherwise. The first four twin primes are {3,5},{5,7},{11,13} and (17,19}.
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Transcribed Image Text:1. Word Garbler Write a python program that inputs a string from the user, then outputs a garbled version of the original string; i.e. it outputs a string with the same characters as the original string except that the characters are randomly mixed up. For example, given the string "Hello" it may printout "eHoll" or "loHel". You must use functions in your solution. 2. Doubloons A string is said to be a doubloon if every letter that appears in the string appears exactly twice. For example, the following strings are all doubloons: abba, anna, appall, appearer, appeases, arraigning, beriberi, bilabial, boob, caucasus, coco, dada, deed, emmett, hannah, horseshoer, intestines, isis, mama, mimi, murmur, noon, otto, papa, peep, reappear, redder, sees, shanghaiings, toto Write a python program that defines and uses a function is Doubloon (s) that returns a True if the string s is a doubloon or False otherwise. Input a string from the user, then output a message specifying if the input string is a doubloon or not. 3. Twin Primes A prime number is any integer greater than 1 that is divisible (without remainder) by only one and itself. Twin primes are consecutive odd numbers both of which are prime numbers. Write a python program which inputs two positive integers A and B from the user, then outputs all the twin primes in the range from A to B, both inclusive. Your program must define and utilize a function is Prime (n) that returns True if n is prime or False otherwise. The first four twin primes are {3,5},{5,7},{11,13} and (17,19}.
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