Whenever they zig, you gotta zag def is_zigzag(n): A positive integer n is a zigzag number (also called an “alternating number” in some combinatorics materials) if the series of differences between

C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter5: Repetition Statements
Section5.5: A Closer Look: Loop Programming Techniques
Problem 14E
icon
Related questions
Question

Looking for assistance with this question:

Whenever they zig, you gotta zag

def is_zigzag(n):

A positive integer n is a zigzag number (also called an “alternating number” in some combinatorics materials) if the series of differences between its consecutive digits read from left to right strictly alternates between positive and negative steps. The step from the 0irst digit to the second may be either positive or negative to start this dance. This function should determine whether its parameter n is a zigzag number.

In the negative examples in the table below, the part of the number that violates the zigzag property is highlighted in red.

n

Expected result

7

True

25391

True

90817263545463728185

True

16329

False

104175101096715

False

49573912009

False

 

Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Time complexity
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
  • SEE MORE QUESTIONS
Recommended textbooks for you
C++ for Engineers and Scientists
C++ for Engineers and Scientists
Computer Science
ISBN:
9781133187844
Author:
Bronson, Gary J.
Publisher:
Course Technology Ptr
C++ Programming: From Problem Analysis to Program…
C++ Programming: From Problem Analysis to Program…
Computer Science
ISBN:
9781337102087
Author:
D. S. Malik
Publisher:
Cengage Learning