A school posts an honor roll per class. Each gradebook row is "class,student,score" (score a non-negative…

Question

A school posts an honor roll per class. Each gradebook row is "class,student,score" (score a non-negative integer; one row per student per class). Given the rows and an integer n >= 1, return up to n rows per class, formatted exactly like the input: classes in ascending name order, and within a class students by score descending, ties broken by name ascending. Example: rows ["math,ava,91",…

Prep Room · Answer

### Intuition Top-n per group is group-by plus a bounded sort: bucket the rows by class, order each bucket, and slice off the first n. ### Approach 1. Parse…

Honor roll by class