﻿ C# - Non-negative numbers multiples of 3 or 7, but not both

# C#: Check whether a given non-negative given number is a multiple of 3 or 7, but not both

## C# Sharp Basic Algorithm: Exercise-43 with Solution

Write a C# Sharp program to check if a given number that is not negative is a multiple of 3 or 7, but not both.

Visual Presentation:

Sample Solution:-

C# Sharp Code:

``````using System;
using System.Linq;

namespace exercises
{
// Class declaration
class Program
{
// Main method - entry point of the program
static void Main(string[] args)
{
// Calling the 'test' method with different integers and printing the results
Console.WriteLine(test(3));   // Output: True
Console.WriteLine(test(7));   // Output: True
Console.WriteLine(test(21));  // Output: False
Console.ReadLine(); // Keeping the console window open
}

// Method to check if a number is divisible by either 3 or 7 exclusively
public static bool test(int n)
{
// Return the result of the exclusive OR (^) operation between the conditions
// Returns true if either n is divisible by 3 or n is divisible by 7, but not both
return n % 3 == 0 ^ n % 7 == 0;
}
}
}
```
```

Sample Output:

```True
True
False```

Flowchart:

C# Sharp Code Editor:

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