C Program To Check Repetition of Digit In A Number using Arrays

https://technotip.com/8799/c-program-to-check-repetition-of-digit-in-a-number-using-arrays/

Lets write a C program to check if any digit in a user input number appears more than once.

Note: Any number can be formed using only 0-9 digits. So we take an array with length 10. i.e., 0 to 9

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