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C# Intermediate C# Polymorphism Virtual Methods

Posted by Tiago Ramos
Tiago Ramos
2,380 Points

How to check if any value of the array is a repeat of preceding value?

Hi guys,

I have an idea, but tell me if there is a better way, I think I should: 1 - make a foreach loop to iterate the array 2 - during the iteration compare the actual value with the previous one 3 - return true if the value it's the same

Thanks guys :)

SequenceDetector.cs 
namespace Treehouse.CodeChallenges
{
    class SequenceDetector
    {
        public virtual bool Scan(int[] sequence)
        {
            return true;
        }
    }
}
RepeatDetector.cs 
namespace Treehouse.CodeChallenges
{
    class RepeatDetector : SequenceDetector 
    {
        public override bool Scan(int[] sequence)
        {
            // use a foreach loop 
            // comparing the actual value in the array with the previous one
            // return true if it is the same
            return true;
        }
    }
}

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

It sounds like you have a good idea. It should pass the challenge when correctly implemented.

Remember to return "false" if the loop finishes.