C Program To Count Digit k in Number n using Recursion

https://technotip.com/8170/c-program-to-count-digit-k-in-number-n-using-recursion/

Lets write a C program to count the number of occurrences of digit k in user input positive integer number n, using recursion.

For Example: If user inputs n = 12235, and k = 2, then our C program should find how many times digit 2 is present in number 12235.

Note: (num % 10) fetches last digit in num. If num = 1234; (num%10) fetches the last digit from right, which is 4.

(num/10) removes the last number from right. If num = 1234; (num/10) removes last digit i.e., 4 and the result of (num/10) will be 123.

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