This is the description.
There is a table that lists the time intervals required to perform a specific task:
id | start | Finish |
---|---|---|
1 | 07:00:00 | 11:00:00 |
2 | 12:30:00 | 17:00:00 |
3 | 11:30:00 | 14:00:00 |
4 | 09:30:00 | 11:30:00 |
5 | 10:00:00 | 15:00:00 |
6 | 09:00:00 | 13:30:00 |
7 | 07:00:00 | 11:30:00 |
These tasks cannot be completed at the same time. I need to find out the minimum number of days required to complete all tasks.
In this table, I can spend at least 5 days to complete the task.
day 1 => task 1 and task 2 day 2 => task 4 and task 3 day 3 => task 5 day 4 => task 6 day 5 => task 7
So the result should be 5. I hope it's clear, thank you in advance!