Developer Associate

You have been given an array/list 'arr' consisting of 'n' elements.

Each element in the array is either 0, 1 or 2.

Sort this array/list in increasing order.

Do not make a new array/list. Make changes in the given array/list.

Example :

Input: 'arr' = [2, 2, 2, 2, 0, 0, 1, 0]

Output: Final 'arr' = [0, 0, 0, 1, 2, 2, 2, 2]

Explanation: The array is sorted in increasing order.

You are given the schedule of 'N' meetings with their start time 'Start[i]' and end time 'End[i]'.

You have only 1 meeting room. So, you need to return the maximum number of meetings you can organize.

Note:

The start time of one chosen meeting can’t be equal to the end time of the other chosen meeting.

For example:

'N' = 3, Start = [1, 3, 6], End = [4, 8, 7].

You can organize a maximum of 2 meetings. Meeting number 1 from 1 to 4, Meeting number 3 from 6 to 7.

You are the city admin and you have to design a system to fight covid and help govt. in maintaining hospital beds