Grouping of people based on days or months
medium
1 of 5 Lessons
Tabulating data for three different departments
medium
2 of 5 Lessons
Selection based on specific criteria and age
medium
3 of 5 Lessons
Day-based scheduling for exams and events
medium
4 of 5 Lessons
Logic behind selection with multiple conditions
medium
5 of 5 Lessons