Program to check whether given number is palindrome or not - C Programming

TL;DR

Generate a program to check if a number is a palindrome, i.e., if it remains the same when its digits are reversed.

Transcript

hello friends let's write an important program from the exemption point of view to check whether given number is palindrop what exactly i mean by a polynomial number a number when it is reversed if it is going to spell same then it will be called as a paranormal number for example 121 when i reverse this number as 121 the result is still 121 itself... Read More

Key Insights

• ◀️ Palindrome numbers remain the same when their digits are reversed.
• 🚱 Non-palindrome numbers change when their digits are reversed.
• 🔢 The program copies the given input into another variable, n1, to ensure the comparison with the reversed number is accurate.
• 🔢 The reversed number, rib, is compared with the unmodified input value, n1, to determine if it is a palindrome.
• 😒 The program uses a while loop and various calculations to obtain the reversed number.
• 🆘 Spelling the results and variables along with the explanations helps with understanding the program.
• 💦 By working out the program and experimenting with different inputs, one can better understand its functionality.

Questions & Answers

Q: What is a palindrome number?

A palindrome number is a number that remains the same when its digits are reversed. For example, 121 is a palindrome number.

Q: How does the program check if a number is a palindrome?

The program first obtains the reverse of the given number by using a loop and a series of calculations. Then, it compares the reversed number with the original number to determine if they are identical.

Q: Why is it necessary to copy the value of the given input into another variable?

By copying the value of the given input into another variable, such as n1, the program ensures that any modifications made to the original number, n, do not affect the comparison with the reversed number, rib. If the original number, n, is used directly, it would be reduced to zero at the end of the loop, leading to incorrect results.

Q: What happens if the reversed number is compared with the modified original number, n?

If the reversed number is compared with the modified original number, n, instead of the unmodified value, n1, the program will always display the number as non-palindrome. This is because n is reduced to zero at the end of the loop, leading to a false comparison.

Summary & Key Takeaways

• Palindrome numbers remain the same when their digits are reversed, such as 121.

• Non-palindrome numbers change when their digits are reversed, such as 523.

• To check if a number is a palindrome, the program compares the reversed number with the original number.