Day 2

% First star

data = dlmread('Day_2_data.txt','\t');

n = size(data,1);

sum = 0;
for i = 1:n
    sum = sum + (max(data(i,:))-min(data(i,:)));
end

%%

% Second star

data = dlmread('Day_2_data.txt','\t');

% data = [5 9 2 8;9 4 7 3;3 8 9 5];

sum = 0;
for i = 1:size(data,1)
    for j = 1:size(data,2)
        for k = 1:size(data,2)
            if data(i,j) > data(i,k)
                if mod(data(i,j),data(i,k)) == 0
                    sum = sum + data(i,j)/data(i,k);
                end
            end
        end
    end
end