C#: Check whether an array of integers contains a 3 next to a 3 or a 5 next to a 5 or both

C# Sharp Basic Algorithm: Exercise-119 with Solution

Write a C# Sharp program to check whether an array of integers contains a 3 next to a 3 or a 5 next to a 5 or both.

Visual Presentation:

Sample Solution:

C# Sharp Code:

using System; // Importing the System namespace

namespace exercises // Defining a namespace called 'exercises'
{
    class Program // Defining a class named 'Program'
    {
        static void Main(string[] args) // The entry point of the program
        {               
            // Outputting the result of the 'test' method with different integer arrays as arguments
            Console.WriteLine(test(new[] { 5, 5, 5, 5, 5 })); // Testing the method with an array containing all 5s
            Console.WriteLine(test(new[] { 1, 2, 3, 4 })); // Testing the method with an array containing consecutive numbers
            Console.WriteLine(test(new[] { 3, 3, 5, 5, 5, 5 })); // Testing the method with an array containing both consecutive 3s and 5s
            Console.WriteLine(test(new[] { 1, 5, 5, 7, 8, 10 })); // Testing the method with an array containing 5s, but not consecutive

        }           

        // Method to check if an array contains either consecutive 3s or consecutive 5s
        static bool test(int[] numbers)
        {
            for (int i = 0; i < numbers.Length - 1; i++) // Loop through the array except for the last element
            {
                // Check if two consecutive elements are both 3s or both 5s
                if ((numbers[i] == 3 && numbers[i + 1] == 3) || (numbers[i] == 5 && numbers[i + 1] == 5))
                    return true; // Return true if consecutive 3s or 5s are found
            }
            return false; // Return false if no consecutive 3s or 5s are found in the array
        }    
    } 
}

Sample Output:

True
False
True
True

Flowchart:

C# Sharp Code Editor:

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