tabulate doesn't count votes when multiple candidates are eliminated

Question

for (int i = 0; i < voter_count; i++)
{
    // vote for top-preferred candidate if possible  
    if (candidates[preferences[i][0]].eliminated == false)
    {
        candidates[preferences[i][0]].votes += 1;
    }
    else
    {
        // vote for the following option
        for (int j = 1; j < candidate_count; j++)
        {
            if (candidates[preferences[i][j]].eliminated == false)
            {
                candidates[preferences[i][j]].votes += 1;
            }
        }
    }
}

which i don't understand since this is what this part is for:

// vote for the following option
for (int j = 1; j < candidate_count; j++)
{
    if (candidates[preferences[i][j]].eliminated == false)
    {
        candidates[preferences[i][j]].votes += 1;
    }
}

Answer 1

The problem is in this loop:

for (int j = 1; j < candidate_count; j++)
{
    if (candidates[preferences[i][j]].eliminated == false)
    {
        candidates[preferences[i][j]].votes += 1;
    }
}

If your preference 0 is taken it registers all other preferences. That is to say if their are 3 candidates and preference 0 has been eliminated it will add the votes to the candidates in your preference 1 and also in candidate 2.

Try using debug50 to help you find the error.