Question #$2$:

$(3$ Points$)$

Suppose the grades of $6$ students are stored in a two$-$dimensional array. Each

student has $4$ marks, each row represents a student, the first cell in the row

stores the number of the student $($Student id$),$ and the last cell in the row

stores the calculated average for the student's marks.

Write functions which do the following:

$\%$

$1)$ Display the number of the student that has the highest mark

$2)$ Sort the rows by Student Id;

$3)$ Add bonus $+5$ to each mark to each student who has the minimum average