Generate word at a given index

words.c

void generate(int index, int wordSize, int alphabetSize, char* result, char base = 0)
{
	for (int i = wordSize - 1; i >= 0; i--)
	{
		int toSkip = std::pow(alphabetSize, i);
		char c = index / toSkip;
		result[wordSize - i - 1] = base + c;
		index = index % toSkip;
	}
}