{
//treat 0 or 1 letter "words" as an isogram
if (Guess.length() < 2) { return true; }
//setup the map
TMap <char, bool> LetterSeen;
//run through the whole word
//auto pozwala "Zgadnąć" kompilatorowi typ zmiennej podczas kompilacji, nie zalecane przy interfejsach, ok przy logice
for (auto Letter : Guess) //for all letters of the guess
{
Letter = tolower(Letter);
//in map - check if character was mentioned in the map
// if character is present in the map - return false
if (LetterSeen[Letter]) { return false; }
//if character is not in the map, add it
else { LetterSeen[Letter] = true; }
}
return true;
}
