// Compares guess to secret code and returns the number of correct digits
// in the incorrect locations.
int Code::checkIncorrect(Code& guess) {
const int secretCodeLength = getLength();
int count = 0; // correct digits in the incorrect location
vector<bool> secretUsed = getUsed();
vector<bool> guessUsed = guess.getUsed();
/// check vector lengths
if (guess.getLength() != secretCodeLength) {
throw InvalidVectSize("Code::checkCorrect - vectors are not the same length!");
}
// compare all unused guess values to current unused secret code value
for (int i = 0; i < secretCodeLength; i++) {
for (int j = 0; j < guess.getLength(); j++) {
if ((!secretUsed[i] && !guessUsed[j]) &&
(getCode()[i] == guess.getCode()[j] )) {
// we have a match, mark these indices as used and
// increase the count before continuing the compare
secretUsed[i] = true;
guessUsed[j] = true;
count++;
break;
}
}
}
return count;
}
