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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Structured English
Structured English uses a simple English language to make structured programming easier for non-professionals. The program is divided into various parts that are known as logical statements. These statements are written in a simple English language.
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Write this code in any language Python, Java or C++ and complete the code and make sure it runs.

A happy number is defined by the following process. Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 (where it will stay), or it loops endlessly in a cycle which does not include 1. Those numbers for which this process ends in 1 are happy numbers, while those that do not end in 1 are unhappy numbers. Input: Your program should read lines of text from standard input. Each line contains a single positive integer, N. Output: If the number is a happy number, print 1 to standard output. Otherwise, print 0. For the curious, here's why 7 is a happy number: 7→49→97→130→10→1. Here's why 22 is NOT a happy number: 22→8- >6452→29→85→89→145→42→20-4- >1637→58→89 ... Test 1 Test Input 1 Expected Output 1 Test 2
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Transcribed Image Text:A happy number is defined by the following process. Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 (where it will stay), or it loops endlessly in a cycle which does not include 1. Those numbers for which this process ends in 1 are happy numbers, while those that do not end in 1 are unhappy numbers. Input: Your program should read lines of text from standard input. Each line contains a single positive integer, N. Output: If the number is a happy number, print 1 to standard output. Otherwise, print 0. For the curious, here's why 7 is a happy number: 7→49→97→130→10→1. Here's why 22 is NOT a happy number: 22→8- >6452→29→85→89→145→42→20-4- >1637→58→89 ... Test 1 Test Input 1 Expected Output 1 Test 2
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