HoldValuePositionBinary

using System;
// We are given integer number n, value v (v=0 or 1) and a position p. Write a sequence of operators that modifies n to hold the value v at the position p from the binary representation of n.
//Example: n = 5 (00000101), p=3, v=1 --> 13 (00001101); n = 5 (00000101), p=2, v=0 --> 1 (00000001)

class HoldValuePositionBinary
{
    static void Main()
    {
        Console.Write("Enter n = ");
        int n = int.Parse(Console.ReadLine());  // number
        Console.Write("Enter v = ");
        int v = int.Parse(Console.ReadLine());  // v = 1 or 0
        Console.Write("Enter p = ");
        int p = int.Parse(Console.ReadLine());  // position
        int bit = 0;
        int mask = 1;

        bit = mask << p;
        bit = (n & bit) >> p;
        if (bit != v) // if (bit != v)
        {
            bit = mask << p;
            n ^= bit;
            Console.WriteLine(n);
        }
        else // if (bit = v)
        {
            bit = mask << p;
            n |= bit;
            Console.WriteLine(n);
        }
    }
}