C Program for Digit Operations

C Program for Digit Operations

• Program prompts user for a number input and calculates various properties of the number.
• Utilizes standard I/O functions printf and scanf for interaction.

Sum of Digits

• Initializes sum to zero and uses a temporary variable temp to hold the number.
• A loop iterates while temp is not zero:
  • Adds the last digit of temp to sum using temp % 10.
  • Reduces temp by removing the last digit using temp /= 10.
• Example: Input of 12 results in a sum of digits equal to 3.

Reverse of the Number

• Initializes reverse to zero and resets temp to the original number.
• A loop constructs the reversed number:
  • Multiplies reverse by 10 and adds the last digit of temp.
  • Updates temp to remove the last digit.
• Example: For input 12, the reversed number is 21.

Palindrome Check

• Compares the original number with the reversed number.
• If they are equal, prints that the number is a palindrome.
• Example: Input 212 is equal to its reverse, confirming it as a palindrome.

Program Output Example

• For input 12:
  • Outputs sum of digits as 3.
  • Outputs reversed number as 21.
  • States that 12 is not a palindrome.
• For input 212:
  • Outputs sum of digits as 5.
  • Outputs reversed number as 212.
  • Confirms that 212 is a palindrome.