Neon Number in C++2 min read

In this tutorial, we will write a neon number program in Cpp. We will write two different programs.

  1. Check for neon number
  2. Display the neon number within the range

Neon Numbers

A number is said to be a neon number if the sum of the digits of a square of the number is equal t the original number.

Example: 9 is a Neon number (see explanation in the diagram).

Neon Number in C

Neon Number in C++

C++ Program to check for neon numbers.

Output:

Enter the number: 9
9 is a Neon number


C++ program to display all the neon number within a given range

Output:

ENTER THE STARTING AND FINAL NUMBER FOR THE RANGE TO CHECK

Enter the lowest number: 1
Enter the Highest number: 2000

Neon Number between them are:1 9


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