Visa Inc. Intern Software Engineer interview questions

1) Started with a DSA question . The problem was : There are n companies ,each company with certain number of products(say , Mi is the number of the products of ith company , where i=1 to n) . Given ratings for each of these products . You have to return the order of products from highest to lowest rating on a condition product should be in a roundrobin fashion . 2) followed by few SQL queries . 3) Finally some HR questions , like behavioural .