Question

How to check if an integer include specific digits x times in C#

Answer 1

using System;

class Program
{
    // Method to check if the digit occurs x times in the number
    static bool IntegerIncludeDigitXTimes(int n, int xtims, int digit) {
        int count = 0;

        // Count occurrences of the digit in the number
        while (n > 0) {
            if (n % 10 == digit) {
                count++;
            }
            n = n / 10; // Perform integer division
        }

        // Return true if count matches xtims
        return count == xtims;
    }

    static void Main(string[] args)
    {
        Console.WriteLine(IntegerIncludeDigitXTimes(7097175, 3, 7)); // True
        Console.WriteLine(IntegerIncludeDigitXTimes(70975, 3, 7));   // False
    }
}



/*
run:

True
False

*/

 

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