6 ¬ (number of students)1001 1005 1008 1019 1021
1032 ¬ (student ids)4 ¬
(number of initial classes)1008 CS221 1
3 ¬
(student id, class id, sec, credits)1001 CS222 2
3 ¬
(student id, class id, sec, credits)1032 CS201 1
3 ¬
(student id, class id, sec, credits)1001 CS350 1
3 ¬
(student id, class id, sec, credits)2 ¬
(number of modifications)del 1008
CS221 ¬
(a deletion)add 1032 CS324 3
4 ¬
(an addition)An example output for the above input follows:
1001 : CS222 2 3 : CS350 1 31005 :1008 : CS221 1 31019 :1021 :1032 : CS201 1 3-------------------
After Modifications
-------------------
1001 : CS222 2 3
: CS350 1 3
1005 :
1008 :
1019 :
1021 :
1032 : CS201 1 3
: CS324 3 4