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How to find the length of the longest consecutive zeroes in the binary representation of a number in C#

1 Answer

0 votes
using System;

class Program
{
    // Function to find the longest sequence of consecutive zeroes in binary representation
    static int LongestConsecutiveZeroes(int n) {
        int maxCount = 0;
        int currentCount = 0;

        while (n > 0) {
            if ((n & 1) == 0) { // Check if the least significant bit is 0
                currentCount++;
                maxCount = Math.Max(maxCount, currentCount); // Update maxCount
            }
            else {
                currentCount = 0; // Reset count when a 1 is encountered
            }

            n >>= 1; // Right shift the number
        }

        return maxCount;
    }

    static void Main()
    {
        int num = 11298; // 0010 1100 0010 0010

        Console.WriteLine("Longest consecutive zeroes: " + LongestConsecutiveZeroes(num));
    }
}



/*
run:

Longest consecutive zeroes: 4

*/

 



answered Sep 14, 2025 by avibootz
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