C# Sharp Basic Algorithm Exercises: Check a given array of integers and return true if the given array contains two 5's next to each other, or two 5 separated by one element

C# Sharp Basic Algorithm: Exercise-120 with Solution

Write a C# Sharp program to check a given array of integers and return true if the given array contains two 5's next to each other, or two 5 separated by one element.

Pictorial Presentation:

Sample Solution:

C# Sharp Code:

using System;
namespace exercises
{
   class Program
    {       
        static void Main(string[] args)
        {               
         Console.WriteLine(test(new[] { 5, 5, 1, 5, 5 })); 
         Console.WriteLine(test(new[] { 1, 2, 3, 4 })); 
         Console.WriteLine(test(new[] { 3, 3, 5, 5, 5, 5})); 
         Console.WriteLine(test(new[] { 1, 5, 5, 7, 8, 10})); 
        }           
       static bool test(int[] numbers)
         {
           int len = numbers.Length;

            for (int i = 0; i < len - 1; i++)
            {
                if (numbers[i] ==5 && numbers[i + 1] == 5) return true;
                if (i + 2 < len && numbers[i] == 5 && numbers[i + 2] == 5) return true;
            }

            return false;
         }    
   } 
}

Sample Output:

True
False
True
True

Flowchart:

C# Sharp Code Editor:

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