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Write a program that takes a positive integer as the height of the triangle and prints an alphabetical triangle, using lowercase English letters as shown below. Each subsequent row of the triangle should increase in length by two letters. Make sure your program validates the user input. If the user does not input a positive integer, print "Invalid input."

Write a program that takes a positive integer as the height of the triangle and prints an alphabetical triangle, using lowercase English letters as shown below. Each subsequent row of the triangle should increase in length by two letters. Make sure your program validates the user input. If the user does not input a positive integer, print "Invalid input."

Database System Concepts
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
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Write a program that takes a positive integer as the height of the triangle and prints an alphabetical triangle, using lowercase English letters as shown below. Each subsequent row of the triangle should increase in length by two letters.

Make sure your program validates the user input. If the user does not input a positive integer, print "Invalid input."

Write a program that takes a positive integer as the height of the triangle and prints an alphabetical triangle, using lowercase English letters as shown below. Each subsequent row of the triangle should increase in length by two letters. Make sure your program validates the user input. If the user does not input a positive integer, print "Invalid input." Sample run 1: Enter the height: 4 a bcd efghi jklmnop Sample run 2: Enter the height: -1 Invalid input.
Transcribed Image Text:Write a program that takes a positive integer as the height of the triangle and prints an alphabetical triangle, using lowercase English letters as shown below. Each subsequent row of the triangle should increase in length by two letters. Make sure your program validates the user input. If the user does not input a positive integer, print "Invalid input." Sample run 1: Enter the height: 4 a bcd efghi jklmnop Sample run 2: Enter the height: -1 Invalid input.
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