Guessing isogram word

[alirezafour]

I changed the function GetBullCows to GetPattern so instead of telling Bulls and Cows it shows @ for the correct letter and index and shows ? for the letter that exists but not in right place.

FString UBullCowCartridge::GetPattern(const FString& Guess) const
{
    // Setting up hidden pattern
    FString HiddenPattern = HiddenWord;
    for (int32 index = 0; index < HiddenPattern.Len(); index++)
    {
        HiddenPattern[index] = 'X';
    }
    // for every index Guess is same as index Hidden, Shows @
    // if not a bull was it a cow? if yes Show ?
    for (int32 GuessIndex = 0; GuessIndex < Guess.Len(); GuessIndex++)
    {
        if (Guess[GuessIndex] == HiddenWord[GuessIndex])
        {
            HiddenPattern[GuessIndex] = '@'; //
            continue;
        }

        for (int32 HiddenIndex = 0; HiddenIndex < HiddenWord.Len(); HiddenIndex++)
        {
            if (Guess[GuessIndex] == HiddenWord[HiddenIndex])
            {
                HiddenPattern[GuessIndex] = '?';
                break;
            }   
        }
    }
    return HiddenPattern;   
}